Vocabularies

Name	Links
The Institute of Electrical and Electronics Engineers Thesaurus "The IEEE Thesaurus is a controlled vocabulary of over 9,000 descriptive engineering, technical, and scientific terms as well as IEEE-specific society terms...
A table of geologic time "This work is a collection of about a thousand words, the result of two centuries of accumulated scientific development...
Wildlife Ontology "A simple vocabulary for describing biological species and related taxa...
Cell Line Ontology "Thousands of cell lines have been artificially developed and used for different applications...
Cell Cycle Ontology "CCO basically contains genes, proteins, interactions (comprising genes or proteins that participate in them), processes from the cell cycle subtree of GO, molecular functions (GO), taxa, and ontological constructs (like an upper level ontology and relationships) to stick everything together...
Plant Ontology "Plant Ontology project is a major international bioinformatics effort on standardizing the nomenclature, definitions, synonyms and relations of various terms/keywords/vocabularies that describe anatomical entities as well as the growth and developmental stages of plants...
Healthcare Common Procedure Coding System "The Healthcare Common Procedure Coding System (HCPCS, often pronounced by its acronym as "hick picks") is a set of health care procedure codes based on the American Medical Association's Current Procedural Terminology (CPT)."...
Evidence Codes Ontology "The Evidence Ontology (ECO) describes types of scientific evidence within the realm of biological research that can arise from laboratory experiments, computational methods, manual literature curation, and other means...
Tick Gross Anatomy Ontology The anatomy of the Tick, Families: Ixodidae, Argassidae...
United Nations Office for Disaster Risk Reduction Terminology "The UNISDR Terminology aims to promote a common understanding and usage of disaster risk reduction concepts and to assist the disaster risk reduction efforts of authorities, practitioners and the public...
Proposed International Standard Nomenclature for Fields of Science and Technology "The Proposed international standard nomenclature for fields of science and technology was proposed in 1973 and 1974 by the Division of Science Policy and Statistics for Science and Technology of UNESCO and adopted by the Scientific Advisory Committee...
Hydro-Québec Document Classification Scheme "Hydro-Québec's classification classification plan is a hierarchical and logical structure made up of headings in which the company's activities are presented and which allows the classification, classification and identification of documents produced or received by the company, Company, whatever the medium...
International Glossary of Hydrology "Agreed terminology is essential for communication, shared research and joint action, especially at the international level...
International Meteorological Vocabulary
Classification of soils in Switzerland "The classification of the soil has the objective of systematically classifying soils due to their diverse profile and location characteristics, making it possible to identify, compare, distinguish and assess subsoil soils.The classification has its importance mainly within the soil customer himself, Since pedological research and experiments should always be carried out on well-defined and classified soils, so that results can be compared...
Thesaurus of Terms Used in Microbial Risk Assessment "Federal and international agencies, private sector organizations, and academics use terms and definitions differently in their microbial risk assessments...
Coastal and Marine Ecological Classification Standard "The Coastal and Marine Ecological Classification Standard (CMECS) is a catalog of terms that provides a means for classifying ecological units using a simple, standard format and common terminology (CMECS uses the term 'unit' to refer to any defined entity in the standard at any level of the hierarchy; 'units' include seagrass bed, sand, lagoon, and water mass)...
ASFA and Oceanic Abstracts Classification Codes "The classification codes and descriptions are broad subject headings that are specific to various databases...
Dana Classification "The Dana System of Mineralogy was first published in 1837 by James Dwight Dana, a leading geologist of his time; it is in its eighth edition (1997 ed.)...
Thesaurus for Soil Invertebrate Trait-based Approaches "The T-SITA proposes a non-exhaustive, semantically structured, list of traits and ecological preferences...
Thesaurus Laboratory of Solid Physics "The research activities of the Laboratory of Solid Physics cover a broader field than its title would suggest, and we are interested in condensed matter in all its diversity, even if we like to group our activities According to three main axes, involving a roughly equivalent number of researchers: New electronic states of matter, Physical phenomena with reduced dimensions, Soft matter and physical-biological interface...
Human-Factors Taxonomy "This taxonomy provides a structure for identifying human factors for the purpose of scientific research and system test and evaluation...
PCA Cement and Concrete Thesaurus "The PCA Cement and Concrete Thesaurus, a list of accepted terminology for all aspects of cement and concrete, can now be accessed online...
Thesaurus of Engineering and Scientific Terms "In the fall of 1965, two large projects were set in motion to develop contemporary thesauri in the fields of engineering and science...
Engineering-to-Biology Thesaurus "Biological inspiration for engineering design has occurred through a variety of techniques such as database searches, keyword and antonym searches, knowledge of biology, observations of nature and other 'aha' moments...
Defence Technological and Scientific Thesaurus "DEFTEST now contains 24000 entry terms with 155000 cross references...
Max Planck Institute for Marine Microbiology Library Classification Scheme Library Classification Scheme for marine microbiology of the Max Planck Institute....
RESI-Thesaurus for the information system for reactor safety "In the development of the RESI-2 prototype system within the framework of the research project 'Information System on Reactor Safety RESI', a first approach has emerged for a structured index in the problem area 'Atomic Approval Approval Procedure' The computer-assisted system RESI-2, developed by the Institute for Reactor Development of the Gesellschaft für Kernforschung mbR, Karlsruhe, works with the GOLEM program from Siemens, which contains an alphabetical thesaurus for both the so-called bound descriptors (aspects) such as Also for free descriptors The structuring into sub-and superspecies as well as the introduction of synonym links requires a separate work process And overlapping between the administrative and technical vocabulary in the field of reactor safety and the nuclear licensing procedures...
GEOMAR Helmholtz Center for Ocean Research Kiel Library System Library System of the Helmholtz Center for Ocean Research...
GEOMAR Helmholtz Centre for Ocean Research Kiel Subject Headings
WAVES Thesaurus "If you wish to be positive that you find everything there is in WAVES about a particular species, or that is in a certain series, or that is by a particular corporate body, you may use the Thesaurus Search option on the left menu...
Library systematics of the Institute of Statistics and Mathematics The aim of the institution is to provide doctoral students and WU staff who are involved in applied empirical research with competent advice on the use of statistical concepts and methods...
ISO 4791-1:1985 Laboratory Apparatus Vocabulary "This part of ISO 4791 lists the names of items of laboratory apparatus, made essentially from glass, porcelain or vitreous silica, together with items of equipment, made from other materials, which are commonly used in association with such apparatus...
Astronomical Observatory of Trieste Library Classification system -...
IAC Library Book Classification System "The IAC library has its own book classification system."...
Geopressured Geothermal Bibliography "This thesaurus of terminology associated with the geopressured geothermal energy field has been developed as a part of the Geopressured Geothermal Information System data base."...
Environmental/Chemical thesaurus "The Environmental/Chemical Thesaurus approaches scientific language control problems from a multidisciplinary view...
Code of Classification of Archive Documents of the Oswaldo Cruz Foundation "The document classification code is a working tool used to classify any document produced or received by an organ in the exercise of its functions and activities...
Systematics Biology Systematics for Biology at the University of Kaiserslautern...
Systematics Chemistry Systematics for Chemistry at the University of Kaiserslautern...
Systematics Mathmatics Systematics of Mathematics, University Library Kaiserslautern....
Location-free systematics Mathematics Systematics of Mathematics, University Library Kaiserslautern....
Systematic Physics Systematics for Physics of the University Library Kaiserslautern....
Global Agricultural Concept Scheme (GACS) "GACS explored the possibility of creating a global repository of concepts and terminology in the area of agriculture...		API
International Coastal Atlas Network Coastal Erosion Global Thesaurus "Terms used at all hierarchical levels in the ICAN global thesaurus for coastal erosion...
Oregon Coastal Atlas Coastal Erosion Thesaurus Markup Terms "Terms used at all hierarchical levels in the Oregon Coastal Atlas for coastal erosion layers, datasets and discovery."...
Oregon Coastal Atlas Coastal Erosion Thesaurus Discovery Terms "Terms used at all hierarchical levels in the Oregon Coastal Atlas for categorisation and discovery, but not for layer or dataset markup."...
MIDA Coastal Erosion Thesaurus "A collection of terms used by the Irish Marine Data Atlas in association with the topic of coastal erosion."...
BODC Annotated Reference Material Classifiers "Terms used to classify the type of reference material used by laboratories in the verification of analytical techniques in terms of consistency, accuracy and precision."...
Shelf Classification Mathmatics "The signature of the mat books is composed of the basic signature and the individual signature, the basic signature is separated from the individual signature in the OPAC by '/', and on the signature sticker in the book by a horizontal line (...) The unambiguous identification of a book becomes By means of the individual signature.It is formed by the initial letter of the title followed by two digits.Then the volumes are followed by '-' in multi-volume works, if there are several editions of the book, the edition is indicated in parentheses....
Systematic Table of Physics "The signature of the phy books is composed of the signature and individual signature, the basic signature is separated from the individual signature in the OPAC by '/', on the signature sticker in the book by a horizontal line (...) The unambiguous identification of a book is achieved by means of the individual signature, which is formed by the author 's initial letter followed by two digits, and in the case of multi - volume works, the band is followed by' - ' The circulation is indicated in brackets...
Systematics Geosciences "The systematics of the geoscientific system (...) consist of a combination of uppercase letters (which denote the individual basic disciplines general, geology, mineralogy, paleontology, geophysics, geography, geography, archeology, biology, mathematics, physics and chemistry) and digits...
NIFSTD Ontology "The NIFSTD ontology is composed of a collection of OWL modules covering distinct domains of bio-medical reality...
Shelf Classification Botany Shelf Classification of Botany of the University Library Mainz....
Shelf Classification Zoology This is the classification system for Zoology at the University Library of Trier....
Documentation Nature and Landscape - online Thesaurus "In der Datenbank ist eine Schlagwortliste - angereichert mit einigen Thesaurus-Elementen - hinterlegt, die über 11.300 Metadaten enthält (Sach-, Bio-, Geo-, Körperschafts- und Personen-Termini)."...
General Chemistry Glossary A General Chemistry Glossary by Genereal Chemistry Online...
Weather Words "Weather forecasts and warnings have to compress a lot of information into standardised, brief messages...
Electropedia: The World's Online Electrotechnical Vocabulary "Electropedia (also known as the 'IEV Online') is the world's most comprehensive online electrical and electronic terminology database containing more than 20 000 terms and definitions in English and French organized by subject area, with equivalent terms in various other languages (...)...
International Electrotechnical Commission Glossary "The IEC Glossary is a compilation of electrotechnical terminology in English and French extracted from the "Terms and Definitions" clause of IEC publications (those issued since 2002)...
Vocabulary of Space Science and Technology "This vocabulary is part of a collection of thematic vocabularies published by the General Delegation for the French Language and the Languages ​​of France, under the French Language Enrichment Device...
Water Quality Planning Bureau Library Thesaurus "The Water Quality Library Database is indexed using controlled vocabulary from the WQPB Library Thesaurus...
Vocabulary of Chemistry and Materials "Les fascicules de cette collection reprennent les listes de termes, expressions et définitions publiées au Journal officiel de la République française par la Commission générale de terminologie et de néologie, en application du décret du 3 juillet 1996 relatif à l’enrichissement de la langue française...
Vocabulary of Nuclear Engineering "Les fascicules de cette collection reprennent les listes de termes, expressions et définitions publiées au Journal officiel de la République française par la Commission générale de terminologie et de néologie, en application du décret du 3 juillet 1996 relatif à l’enrichissement de la langue française...
BioTop "The flood of data and factual knowledge in biology and medicine requires principled approaches to their proper analysis and management...
Dictionary of Physical Geography "This dictionary includes more than two thousand words belonging primarily in the areas of biogeography, the science of soil, climate, geomorphology and hydrology...
Dictionary of Immunology "The dictionary contains more than 1,300 immunology terms directly related to this field of knowledge...
Names of marine mammals "This work, Names of marine mammals is a descriptive dictionary compiled by Jordi Lleonart with terminology TERMCAT advice and support of the Biological Sciences Section of the Institute of Catalan Studies...
Dictionary of Neuroscience "This dictionary contains about two thousand terms used in neuroscience along with definition, explanatory notes and equivalents in Spanish and English...
Names of plants "This work, online dictionary names of plants...
General Multilingual Environmental Thesaurus (GEMET) "The basic idea for the development of GEMET was to use the best of the presently available excellent multilingual thesauri, in order to save time, energy and funds...		API
Dictionary of Physics "Dictionary of physics, developed jointly by the Polytechnic University of Catalonia, Catalan Encyclopaedia and TERMCAT, brings together more than three thousand and defines terms used in physics...
Gemology dictionary "This dictionary contains 1302 terms in the field of gemology, especially those related species gemmològiques, physical properties and characteristics of crystalline gems, inclusions and sizes...
Glossary of Cosmochemistry
Semantic Network Service "The Semantic Network Service (SNS) of the Federal Environment Agency provides support for all questions concerning environmental terms including the common place names...
TOP-Thesaurus "The TOP-Thesaurus defines standards for a functional approach to plant diversity by stabilizing the terminology for concepts widely used in ecology and evolution...
AODN Instrument Vocabulary "A controlled vocabulary for instruments that can be used to populate Marine Community Profile metadata...
Tekord "Controlled vocabulary of Norwegian terms with Universal Decimal Classification numbers; library metadata from the Norwegian University of Science and Technology."...		API
Surface Water Classifications "Surface Water Classifications are designations applied to surface water bodies, such as streams, rivers and lakes, which define the best uses to be protected within these waters (for example swimming, fishing, drinking water supply) and carry with them an associated set of water quality standards to protect those uses...
AGU Index Terms "Index terms are a key part of AGU's strategy for categorizing and electronic distribution of journal articles, books, meeting abstracts, and e-mail alerts...
AODN Discovery Parameter Vocabulary "This controlled vocabulary covers parameter terms and their descriptions...
Animal Disease Thesaurus "The first section is an alphabetical arrangement of keyword terms...
AODN Organisation Category Vocabulary "An AODN controlled vocabulary describing organisation categories for classifying organisational entities."...
Optics Classification and Indexing Scheme "OCIS provides a flexible, comprehensive classification system for all optical author input and user retrieval needs...
Saffir-Simpson Hurricane Wind Scale "The Saffir-Simpson Hurricane Wind Scale is a 1 to 5 rating based on a hurricane's sustained wind speed...
Spatial Synoptic Classification "The SSC is based solely on surface based observations at an individual station...
SMGloM "The SMGloM is a structured terminology for mathematics...
Aquo-lex "The Aquo-lex provides a" default language "that aims to prevent speech confusion between people and / or information systems...		API
Bureau of Meteorology Subject Thesaurus "Bureau Metadata Encoding Scheme used for web page 'Subject'."...
Acoustical Performance Terms
Bureau of Meteorology Glossary "The terms and definitions found in this glossary relate to the science of meteorology."...
Environmental Classification "The environmental classification serves the content development of objects (literature, R & D projects / legislation, ...) in the interdisciplinary thematic area 'Environment', which makes it possible to assign them to specific environmental topics, thus facilitating an accurate yet comprehensive (re- ) This classification is usually presented as a meta-information in directories about the storage location of the objects (eg databases, library catalogs) For clarification, the classification can be imagined as a group of 14 columns that symbolize the environmental areas (Eg, LU11, WA54), which in principle are the same in all areas of the environment (columns)...
BGS Geoscience Thesaurus "The BGS Geoscience Thesaurus contains approximately 6000 descriptor terms for concepts in the geoscience and related subjects...
Star Trek Planetary Classification "A planet is a celestial body in orbit around a star or stellar remnants, that has sufficient mass for self-gravity and is nearly spherical in shape...
Star Trek Nebula Classification "A nebula is an interstellar cloud of dust, gas, and plasma, where star formation usually occurs...
Star Trek Sector Classification Sector Classification for the Star Trek Universe....
Star Trek Sector List "A sector is a volume of space approximately 20 cubic light years...
Star Trek Spectral Classification "Stars can generally be classified by their color...
English-Greek Dictionary of Statistics
Glossary of Meteorological Terms "A Glossary of Meteorological Terms with Definitions"...
Pan-European Species directories Infrastructure (PESI) "PESI provides standardised and authoritative taxonomic information by integrating and securing Europe’s taxonomically authoritative species name registers and nomenclators (name databases) and associated exper(tise) networks that underpin the management of biodiversity in Europe...
Integrated Taxonomic Information System "ITIS is an easily accessible database with reliable information on species names and their hierarchical classification that is publicly accessible with unlimited free use...
Prokaryotic Nomenclature Up-to-Date "Prokaryotic Nomenclature up-to-date' is a compilation of all names of Bacteria and Archaea which have been validly published according to the Bacteriological Code since 1...
English Greek chemical terms glossary English Greek chemical terms glossary published by chem.gr....
ETHNOLOGICAL DOCUMENT OF CHEMICAL TERMS Most of the chemical terms that have been collected come from foreign words, mainly Latin, many of which have Greek origin or similar word of common origin...
Phenotypic Quality Ontology "Phenotypic qualities (properties)...
EUNIS Habitat Classification "The EUNIS habitat classification is a comprehensive pan-European system to facilitate the harmonised description and collection of data across Europe through the use of criteria for habitat identification...
Coastal and Marine Ecological Classification Standard "The Coastal and Marine Ecological Classification Standard (CMECS) provides a national framework for organizing information about coasts and oceans and their living systems...
CoRIS Glossary "The CoRIS glossary contains terms concerned with ecology, biogeography, evolution, taxonomy, morphology, physiology, cell and molecular biology, genetics, mapping, development, fisheries, oceanography, geosciences, conservation programs, remote-sensing, physics, chemistry, and data and information management."...
Harvard Spectral Classification Scheme "The modern stellar spectral classification scheme (also known as the Harvard Spectral Classification Scheme) was created by Annie Jump Cannon through her examination of spectra from 1918 to 1924...
Climate and Forecast (CF) features
Environmental thesaurus "UMTHES® includes 13,500 descriptors and 40,000 linked German-language synonyms with 35,000 English translations / equivalents and around 11,000 definitions...
Ontology of Anatomical Entities (AEO) "The AEO is an ontology of anatomical structures that expands CARO, the Common Anatomy Reference Ontology, to about 160 classes using the is_a relationship; it thus provides a detailed type classification for tissues...
BBC Wildlife Ontology "A simple vocabulary for describing biological species and related taxa...
Weighting Ontology "The Weighting Ontology specification provides a vocabulary for describing weightings and their referenced scales, on/ for the Semantic Web."...
XKOS "XKOS leverages the Simple Knowledge Organization System (SKOS) for managing statistical classifications and concept management systems, since SKOS is widely used...
DrugBank "The DrugBank database is a unique bioinformatics and cheminformatics resource that combines detailed drug (i.e...
Shelf Classification Mathmatics Shelf Classification of the Mathematics of the University Library of Trier....
English-Greek Glossary of Geomorphological Terms English-Greek Glossary of Geomorphological Terms published by the Hellenic Geomorphological Society....
Finnish Geospatial Domain Ontology "Paikkatieto-ontologian (PTO) toinen versio muodostuu Yleisestä suomalaisesta ontologiasta (YSO) ja sitä täydentävistä noin 1020 paikkatietokäsitteestä...
Online Taxonomic Key Application "Welcome to Online Taxonomic Keys, a joint project of Fisheries and Oceans Canada and the Royal BC Museum...
Climate Bonds Taxonomy "The Climate Bonds Taxonomy provides broad guidance for prospective green bond and climate bond issuers and investors...
Shelf Classification Space and environmental sciences Shelf Classification of Space and environmental sciences of the University Library Trier....
Optimization Taxonomy "It is difficult to provide a taxonomy of optimization because many of the subfields have multiple links...
GEM Building Taxonomy "It is a uniform classification scheme of buildings across the globe...
Biomimicry Taxonomy "The Biomimicry Taxonomy is a classification system developed by the Biomimicry Institute to organize biological content on the website AskNature...
Physics Glossary "Translation of Physics terms based on the Coursework for Physics Grades 9 to 12."...
Living Environment Glossary "Translation of Living Environment terms based on the Coursework for Living Environment Grades 9 to 12."...
Systematics of the faculty library for natural sciences Systematics of the faculty library for natural sciences Date: 10/2015...
Shelf Classification Specialized library for geosciences Shelf Classification of the specialized library for geosciences of the library of the Montsnuniversity Leoben...
Geoscience Australia's Units of Measure
UNFC Code "This file contains the CGI UNFC Code vocabulary, as defined by the IUGS Commission for Geoscience Information (CGI) Geoscience Terminology Working Group...
Tenement Type "This concept scheme defines terms used to describe the type of mineral tenements granted in Australian and New Zealand jurisdictions (eg, exploration licence, mining lease)."...
Tenement Status "This concept scheme defines terms used to describe the status of mineral tenements in Australian and New Zealand jurisdictions (eg, granted, application, expired)."...
Stratigraphic Rank "This scheme specifies concepts used to categorize the stratigraphic rank of geologic units, as compiled by the IUGS Commission for Geoscience Information (CGI) Geoscience Terminology Working Group...
Simple Lithology "This scheme specifies the concept space for Simple Lithology concepts, as defined by the IUGS Commission for Geoscience Information (CGI) Geoscience Terminology Working Group...
Ordinary shelf categories Shelf catagories of the technical University of Tampereen....
Resource Assessment Category "This file contains the CGI Resource Assessment Category vocabulary, as defined by the IUGS Commission for Geoscience Information (CGI) Geoscience Terminology Working Group...
Reserve Assessment Category "This file contains the CGI Reserve Assessment Category vocabulary, as defined by the IUGS Commission for Geoscience Information (CGI) Geoscience Terminology Working Group...
Raw Material Role "This file contains the CGI Raw Material Role vocabulary, as defined by the IUGS Commission for Geoscience Information (CGI) Geoscience Terminology Working Group...
Proportion Term "This file contains the CGI Proportion Term vocabulary, as defined by the IUGS Commission for Geoscience Information (CGI) Geoscience Terminology Working Group...
Particle Type "This file contains the CGI Particle type vocabulary, as defined by the IUGS Commission for Geoscience Information (CGI) Geoscience Terminology Working Group...
Particle Shape "This file contains the CGI Particle Shape vocabulary, as defined by the IUGS Commission for Geoscience Information (CGI) Geoscience Terminology Working Group...
Particle Aspect Ratio "This file contains the CGI Particle Aspect Ratio vocabulary, as defined by the IUGS Commission for Geoscience Information (CGI) Geoscience Terminology Working Group...
Orientation Determination Method "This scheme specifies concepts used to describe the method used to determine the planar or linear orientation of a GeologicFeature (eg, the dip of a fault), as defined by the IUGS Commission for Geoscience Information (CGI) Geoscience Terminology Working Group...
Observation Method (Mapped Feature) "This file contains the CGI Observation Method (Mapped Feature) vocabulary, as defined by the IUGS Commission for Geoscience Information (CGI) Geoscience Terminology Working Group...
NEII Site Status "Site status provides a description of whether an environmental monitoring site within the National Environmental Monitoring Sites Register is active, in-active, decommissioned etc."...
AODN Organisation Vocabulary "An AODN controlled vocabulary describing organisational entities."...
AODN Parameter Category Vocabulary "A classification scheme to support faceted searching across parameter types in the AODN/IMOS Portal 1-2-3."...
AODN Platform Category Vocabulary "A classification scheme to support faceted searching across platform types in the AODN/IMOS Portal 1-2-3."...
AODN Platform Vocabulary "A controlled vocabulary for platforms that can be used in Marine Community Profile metadata...
AODN Sampling Parameter Vocabulary "An AODN controlled vocabulary describing sampling parameters."...
AODN Units of Measure Vocabulary "A controlled vocabulary for units of measure that can be used in Marine Community Profile metadata."...
AODN XBT line vocabulary "This register contains a controlled vocabulary for XBT lines."...
Climate and Forecast Standard Names "Terms used for definitive but not necessarily comprehensive descriptions of measured phenomena in the CF conventions (a content standard for data stored in NetCDF)."...
Thesaurus Onroerend Erfgoed Species "A thesaurus is a mostly hierarchical list of words used to standardize terminology...
Systematik der Bibliothek von Arcetri
AnaEE Thesaurus "The AnaEE thesaurus aims to provide a controlled vocabulary for the semantic description of the study of continental ecosystems and their biodiversity...
INIS/ETDE Thesaurus "It contains a total of 30 741 descriptors, of which 22 064 are valid descriptors and 8677 are forbidden terms...
Vocabulary of Heat Transfers "Controlled vocabulary used for indexing bibliographical records dealing with 'Classical Thermodynamics / Heat Transfers' in the PASCAL database (1972-2015, http://pascal-francis.inist.fr/)."...		API
Biodiversity Thesaurus "This bilingual thesaurus structures the key-concepts of biodiversity in its fundamental and applied ecological components...		API
Human Sex Name Authority List "This table provides the list of human sexes."...		API
Number Name Authority List "The Numbers Named Authority List (NAL) is a controlled vocabulary listing a set of cardinal and ordinal numbers in the 24 official languages of the EU...		API
Time Period Name Authority List "The time-period authority table is a controlled vocabulary which lists the periods of time in the 24 official languages of the EU...		API
Gale Anatomy Thesaurus The Gale Anatomy Thesaurus is a subset of the master Gale Health and Medicine Thesaurus in the narrower domain of the human or animal body as a whole and all of the body’s systems, regions, and parts...
Gale Astronomy Thesaurus The Gale Astronomy Thesaurus is a subset of the master Gale Science Thesaurus...
Gale Biology Thesaurus The Gale Biology Thesaurus a subset of the master Gale Science Thesaurus...
Gale Chemistry Thesaurus The Gale Chemistry Thesaurus a subset of the master Gale Science Thesaurus...
IUPAC Compendium of Chemical Terminology "The Compendium is popularly referred to as the 'Gold Book', in recognition of the contribution of the late Victor Gold, who initiated work on the first edition...
Gale Earth Sciences Thesaurus The Gale Earth Sciences Thesaurus is a subset of the master Gale Science Thesaurus...
IUPAC Nomenclature of Inorganic Chemistry "The Rules of Inorganic Nomenclature (the 'Red Book'), first published in 1958 by the International Union of Pure and Applied Chemistry (IUPAC), were most recently updated as Nomenclature of Inorganic Chemistry 1990...
Gale Herbs and Supplements Thesaurus The Gale Herbs and Supplements Thesaurus is a subset of the master Gale Health and Medicine Thesaurus in the narrower domain of herbs, herbal remedies, and dietary supplements that affect human and animal health...
IUPAC Nomenclature of Organic Chemistry "Chemical nomenclature is used to identify a chemical species by means of written or spoken words and enables a common language for communication amongst chemists...
Gale Mathematics Thesaurus The Gale Mathematics Thesaurus is a subset of the master Gale Science Thesaurus...
Gale Physics Thesaurus The Gale Physics Thesaurus is a subset of the master Gale Science Thesaurus...
Gale Science Thesaurus The Gale Science Thesaurus contains the key subject areas of astronomy, biology, chemistry, earth sciences, mathematics, physics, and psychology...
IUPAC Compendium of Polymer Terminology and Nomenclature "The IUPAC system of polymer nomenclature has aided the generation of unambiguous names that reflect the historical development of chemistry...
IUPAC Compendium of Analytical Nomenclature "The index of this edition contains ca 6,000 entries...
IUPAC Biochemical Nomenclature "The Biochemical Nomenclature and Related Documents (1992) presents IUPAC-IUBMB (International Union of Biochemistry and Molecular Biology) Joint Commissions' recommendations; it includes sections on amino acids, peptides and proteins, enzymes, nucleotides, nucleic acids and protein synthesis, carbohydrates, lipids, etc."...
IUPAC Quantities, Units and Symbols in Physical Chemistry "The purpose of this manual is to improve the exchange of scientific information among the readers in different disciplines and across different nations...
Meteorite Classification "This page provides a survey of the different classes of meteorites...
Unified Code for Units of Measure (UCUM) "The Unified Code for Units of Measure is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business...
Physics Subject Headings (PhySH) "PhySH (Physics Subject Headings) is a physics classification scheme developed by the American Physical Society to organize journals, meetings, and other content by topic...
Celestial Emporium of Benevolent Knowledge "The celestial Emporium of benevolent knowledge is a certain Chinese encyclopedia fiction by the Argentine writer Jorge Luis Borges in the essay The analytical idiom of John Wilkins .....
Referativni Zhurnal Classification Scheme "This classification was prepared as a piece of the UDC (Universal Decimal Classification) which covers all knowledge in a fairly uniform way."...
Catalogue of Life (CoL) "The Catalogue of Life (CoL) is the nearest thing to a comprehensive catalogue of all known species of organisms on Earth...
Aves - A Taxonomy in Flux "There are big changes underway in bird taxonomy...
Environmental Thesaurus for Colombia
Thesaurus of the Environment for Latin America and the Caribbean "For a better understanding of the subject and adequate application of the descriptors in the process of analysis of environmental information, we considered it necessary to present in the first part of the thesaurus, the modules or large categories under which the descriptors have been grouped...
Aufstellungssystematik Mathematik local shelf classification mathematics at TIB library...
Classification of Spatial information industry - In order to foster the rapidly growing spatial information industry in various fields such as logistics and culture as a new growth engine, the scope of related industries is specified and prepared for the production of accurate industrial status statistics...
PIRA Demonstration Classification Scheme "The goal of the Physics Instructional Resource Association (PIRA) Demonstration Classification Scheme is to create a logically organized and universally inclusive taxonomy giving a unique code to every lecture demonstration...
Everglades Online Thesaurus "The Everglades Online Thesaurus is a structured vocabulary of concepts and terms relating to the south Florida environment...
Natural England Corporate Vocabulary "The Corporate Vocabulary is a purpose-built indexing tool which can be used for many applications across Natural England to search for and retrieve information more effectively...
EcoLexicon "EcoLexicon is a terminological resource developed by the LexiCon Research Group at the University of Granada...
CAB Thesaurus (CABT) "The CAB Thesaurus is the essential search tool for all users of the CAB ABSTRACTS™ and Global Health databases and related products...
California Environmental Resources Evaluation System Thesaurus "An integrated controlled environmental vocabulary...
Institute of Major Hazards Thesaurus "The 'Risk Thesaurus' is a set of terms chosen for their ability to facilitate the description of the major hazards theme...
Microthesaurus in Prevention and Emergency Care of Bogota "1112 terms, 624 relations between terms, 65 equivalent terms."...
Hydrocarbon Thesaurus "549 terms, 2 relations between terms, 16 equivalent terms."...
Thesaurus for Architecture, Urban Planning and the Environment "The AUE Thesaurus of Architectural, Urban and Environmental Terms, first published in 1999, is a working tool used today by all the CAUEs as well as by certain partners in these fields...
Thésaurus Urbamet "L'application permet la recherche et l'affichage de ces thèmes et la circulation à travers les différents tableaux...
International Classification for Seasonal Snow on the Ground "Since 1990 our collective knowledge of snow and the techniques we use to observe its characteristics have evolved...
FishBase Classification "The classification schema above genus level is limited in FishBase to classes, orders, families and subfamilies ranks (the latter not yet displayed)...
Classification of Living and Fossil Genera of Decapod Crustaceans "We present an updated classification for the entire Crustacea Decapoda, listing all known families and genera organized by higher taxonomic groups and including estimates of the number of species in every genus...
Classification of the Recent Crustacea "This volume is an attempt to provide the reader, whether a seasoned systematist or a beginning student, with a glimpse into the enormous variety of extant crustaceans...
Thesaurus of Biology "Thesaurus for the curricular materials of the biology subjects of the baccalaureate of the Spanish educational system (17-18 years) 462 terms, 320 relations between terms, 52 equivalent terms."...
Wilson and Reeder's Mammal Species of the World "Although the database will be updated in the future (edited by DeeAnn M...
International Virtual Observatory Alliance Thesaurus "The current vocabulary has 2890 concepts, of which 274 are 'TopConcepts'...		API
InterWATER Thesaurus "It can be used for indexing information; for searching or retrieving information; and as a translation tool for English, French and Spanish water and sanitation terms...
Multilingual Thesaurus of Geosciences "The Multilingual Thesaurus contains 5823 key terms expressed as descriptors (preferred terms) or non-descriptors (non-preferred terms) in the language versions of the MT...
Aquatic Sciences and Fisheries Abstracts Thesaurus "The ASFA Thesaurus is an indexing and searching tool...
NASA Thesaurus "The Hierarchical Listing With Definitions contains all subject terms and USE cross references currently approved for use, and displays the full hierarchical structure for each term along with a definition when available...		API
Herb Thesaurus "This thesaurus functions as a means for indexing articles, photos, and web pages on some of the basic identifying characteristics of herbs...
The Astronomy Thesaurus "The main aim in producing this reference work is to try to standardise the terminology in the field of astronomy for the purposes of aiding unambiguous library cataloguing and more precise recall of data from computer databases...
INIS Interactive Multilingual Thesaurus "The terms in the Joint Thesaurus are listed alphabetically...
Mineral Lists "Here are mineral lists (IMA approved mineral names and varieties names) sorted either alphabetically or arranged systematically...
UniProt Taxonomy "Organisms are classified in a hierarchical tree structure...
Tree of Life Web Project "The Tree of Life Web Project is a collection of information about biodiversity compiled collaboratively by hundreds of expert and amateur contributors...
Transcription Factor Classification "TRANSFAC® provides data on eukaryotic transcription factors, their experimentally-proven binding sites, consensus binding sequences (positional weight matrices) and regulated genes...
Pentatomoidea Classification "This website contains (or will contain) a wealth of information on the various families of the Pentatomoidea (especially the Pentatomidae), and even some information that will be of general interest to Heteropterists...
Thesaurus of Parasitology "1072 terms, 148 relations between terms, 223 non-preferred terms."...
SEMIDE Thesaurus "EMWIS is an initiative of the Euro-Mediterranean Partnership...
Radiation Chemistry Data Center Thesaurus "The indexing terms listed in the thesaurus are those found in the RCDC Bibliographic Data Base and therefore are the terms used to generate the keyword index in this volume...
U.S. Geological Survey Thesaurus "The USGS Thesaurus is the principal controlled vocabulary supporting Science Topics...		API
Emtree "Comprehensive and polyhierarchically structured, Emtree provides a consistent description of all biomedical terminology, allowing unrivaled drug and disease indexing...
E.V. Komarek Fire Ecology Thesaurus "The Thesaurus contains scope notes and cross references that explain the indexing system with its use of broad, narrow, and related subject terms...
Medicinal Plant Thesaurus "6828 terms, 5571 equivalent terms."...
Convention on Biological Diversity Controlled Vocabulary "It facilitates searching and retrieving information by linking similar documents and on-line resources with unique terms...
Geological Federal Institution Thesaurus "The thesaurus contains terms, as used in the text publications and geological maps of the Federal Institution, all of which have their own http web addresses, which can be used as hyperlinks for online texts, in web applications, or as attributes for geodata Single term can also have several alternative names, and is defined in its meaning (semantics) by superior, subordinate, and related terms...
Department of the Environment and Heritage Thesaurus "The DEH thesaurus is broadly based on a subset of the Thesaurus of Environmental Protection Terms, Department of Environmental Protection, WA, 1995...
Thesaurus of Mathematical Sciences "2994 terms, 249 relationships between terms, 916 equivalent terms."...
Properties Source Index "The properties-source index provides databases, reference works, and websites for physico-chemical and other material-related properties (data, definition, measurement), realized as a system of two entangled thesauri for physical properties and chemical systems , 347 synonyms, 126 facets, the following are given: property names, synonyms and translations, a definition and common symbols and physical units according to the IUPAC "Green Book." 326 descriptors, 70 synonyms Sources: Round 830 Sources: Databases, reference books, websites, etc...
U.S. Geological Survey Library Classification System "The U.S...
Physics and Astronomy Classification Scheme (PACS) "The Physics and Astronomy Classification Scheme® (PACS) was developed by the American Institute of Physics (AIP) and has been used in Physical Review since 1975 to identify fields and sub-fields of physics...
Mathematics Subject Classification (MSC2010) The Mathematics Subject Classification (MSC2010) is the previous version of the MSC2020...		API
National Land Cover Data Classification Schemes "NLCD 1992 was a success, and its success had a lot to do with building the momentum for NLCD 2001...
A Classification of the Bird Species of South America "The South American Classification Committee is an official committee of the American Ornithologists' Union whose mission is to create a standard classification, with English names, for the bird species of South America...
U.S. National Vegetation Classification "Classifying vegetation is a critical to sound ecological science and efficient land assessment, management and planning...
Transporter Classification System "The TC-DB website details a comprehensive classification system for membrane transport proteins known as the Transport Classification (TC) system...
SnowTerm Thesaurus "The project purpose is to develop and maintain a reference structured terminology in the domain of the cryosphere environment...
Earth Observation Thesaurus "The project aims at developing a controlled and structured terminology system related to GIS and remote sensing...
Environmental Applications Reference Thesaurus "The EARTh terminological content is derived form various multilingual and monolingual sources of controlled environmental terminology: GEMET - GEneral Multilingual Environmental Thesaurus; The UNEP-Infoterra EnVoc thesaurus; the Italian Earth Sciences Thesaurus; EnvDev, the Terminological Bulletin for the Rio de Janeiro Conference on Environment and Development, plus other documents concerning specific sectors...
Meteorite Classification List "Over 10000 Meteorites from A-Z are listed by classification."...
Virus Taxonomy (ICTV) "Taxonomy lies at the uneasy interface between biology and logic...
National Center for Biotechnology Information Taxonomy "The NCBI Taxonomy database is a curated set of names and classifications for all of the organisms that are represented in GenBank...
Worldwide Bioclimatic Classification System "In the new 'Worldwide Bioclimatic Classification System' proposed, five macrobioclimates, twenty-seven bioclimates and five bioclimatic variants are recognized...
Biocomplexity Thesaurus "Development of the Biocomplexity Thesaurus began in 2002-2003 through a partnership between the former USGS NBII Program and ProQuest (formerly CSA), a worldwide information company with more than 30 years experience as a leading bibliographic database provider...
Soil Taxonomy "The publication Keys to Soil Taxonomy serves two purposes...
Digital Spectral Classification Atlas "The MK Spectral classification system was founded by W...
Atlas of Stellar Spectra "The Atlas of Stellar Spectra and the accompanying outline have been prepared from the viewpoint of the practical stellar astronomer...
CLICAPS Shelf Classification "Shelf Classification for the inventory of the Chemistry Biology Pharmacy Information Center, accessible via StarTree, alphabetical lists, search and navigation in the classification...
Structural Classification of Proteins "SCOP contains the domains of all PDB entries available at the time of the current release's construction...
A Synoptical Classification of the Lamiales "Estimated # species in Lamiales = 22,000...
Cell Phenotype Ontology (CPO) "The Cell Phenotype Ontology (CPO) is an ontology to describe phenotypes on the cellular scale...
Minimal Anatomy Terminology "The Minimal Anatomy Terminology (MAT) is an OBO format terminology using broader-than relationships designed for annotating and searching tissue-associated data and timelines from organisms...
A Classification of Mobile Genetic Elements "ACLAME is a database dedicated to the collection and classification of mobile genetic elements (MGEs) from various sources, comprising all known phage genomes, plasmids and transposons...
Mobile Genetic Element Ontology "MeGO is a Gene Ontology under construction dedicated to the functions of mobile genetic elements...
Ontology of Mouse Developmental Anatomy (EMAPA) "The ontology of mouse developmental anatomy was originally developed by Jonathan Bard and his colleagues as part of the Edinburgh Mouse Atlas Project (EMAP) (http://www.emouseatlas.org) in order to provide a structured controlled vocabulary of stage-specific anatomical structures for the developing laboratory mouse...
Neurobehavior Ontology "The Neurobehavior Ontology (NBO) consists of two main components, an ontology of behavioral processes and an ontology of behavioral phenotypes...
Ontology for Genetic Interval "Using realistic ontology BFO as its top ontology's framwork, OGI formalized the genomic element by defining an upper class 'genetic interval'...
Chemical Entities of Biological Interest (ChEBI) "Chemical Entities of Biological Interest (ChEBI) is a freely available dictionary of molecular entities focused on ‘small’ chemical compounds...
eagle-i Research Resource Ontology "The eagle-i research resource ontology (ERO) models research resources such as instruments, protocols, reagents, animal models and biospecimens...
Environment Ontology "The Environment Ontology (EnvO) provides a controlled, structured vocabulary that is designed to support the annotation of any organism or biological sample with environment descriptors...
Computational Neurosciences Ontology "CNO is a controlled vocabulary composed of classes representing general concepts related to computational neuroscience...
Experimental Factor Ontology "The Experimental Factor Ontology (EFO) provides a systematic description of many experimental variables available in EBI databases, and for external projects such as the NHGRI GWAS catalogue...
Gene Ontology (GO) "The Gene Ontology project is a major bioinformatics initiative with the aim of standardizing the representation of gene and gene product attributes across species and databases...
Glycomics Ontology (GlycO) "The Glycomics Ontology (GlycO) focuses on the glycoproteomics domain to model the structure and functions of glycans and glycoconjugates, the enzymes involved in their biosynthesis and modification, and the metabolic pathways in which they participate...
Fission Yeast Phenotype Ontology " The Fission Yeast Phenotype Ontology (FYPO) is a formal ontology of phenotypes observed in fission yeast...
XEML Environment Ontology "XeO has been created to help plant scientists in documenting and sharing metadata describing the abiotic environment."...
Xenopus Anatomical Ontology (XAO) "The Xenopus Anatomical Ontology describes Xenopus anatomy and development as a controlled vocabulary of terms, organized in a graphical structure...
Multiple Alignment Ontology "The goal of the MAO project is to develop a controlled, structured vocabulary, that will provide a common language not only for the construction of multiple alignments, but also for the numerous applications that exploit the information available in an integrated, global multiple alignment of a protein family...
Enzyme Nomenclature "By the late 1950's it had become evident that the nomenclature of enzymology, in the absence of any guiding authority, in a period when the number of known enzymes was increasing rapidly, was getting out of hand...
PANTHER Classification System "The PANTHER (Protein ANalysis THrough Evolutionary Relationships) Classification System was designed to classify proteins (and their genes) in order to facilitate high-throughput analysis...
Solar System SKOS Ontology Model "This is an ontological knowledge organization system of the planets, dwarf planets, natural satellites, and small solar system bodies in the Solar System using the SKOS, Simple Knowledge Organization System, schema extended...
Geothermal Energy Thesaurus "2025 terms, 3764 relations between terms, 90 non preferred terms."...
GeoRiskVoc "2085 terms, 1154 relations between terms, 27 non preferred terms."...
Systems Biology Ontology "The Systems Biology Ontology is a set of controlled, relational vocabularies of terms commonly used in Systems Biology, and in particular in computational modelling...
TErminology for the Description of DYnamics "The TErminology for the Description of DYnamics (TEDDY) project aims to provide an ontology for dynamical behaviours, observable dynamical phenomena, and control elements of bio-models and biological systems in Systems Biology and Synthetic Biology."...
Ontology for Biomedical Investigations "The Ontology for Biomedical Investigations (OBI) project is developing an integrated ontology for the description of biological and clinical investigations...
Lipid Classification System "The LIPID MAPS Lipid Classification System is comprised of eight lipid categories, each with its own sublassification hierarchy...
World Register of Marine Species (WoRMS) "The aim of a World Register of Marine Species (WoRMS) is to provide an authoritative and comprehensive list of names of marine organisms, including information on synonymy...
UniProtKB Keywords "UniProtKB Keywords constitute a controlled vocabulary with a hierarchical structure...
Forest File Thesaurus "Thesaurus of the Forest File of the General Directorate of Environment of the Autonomous Community of the Region of Murcia."...
Thesaurus of Biodiversity "Terms 5128, Relationship between terms ?, Non-preferred terms 282."...
Semanticscience Integrated Ontology "The Semanticscience Integrated Ontology (SIO) provides a simple, integrated ontology of types and relations for rich description of objects, processes and their attributes."...
Unified Astronomy Thesaurus (UAT) "The Unified Astronomy Thesaurus (UAT) is an open, interoperable and community-supported thesaurus which unifies the existing divergent and isolated Astronomy & Astrophysics thesauri into a single high-quality, freely-available open thesaurus formalizing astronomical concepts and their inter-relationships...
GeoRef Thesaurus "The 11th edition of the GeoRef Thesaurus contains more than 30,800 controlled vocabulary terms and the complete GeoRef indexing structure...
Australian Soil Classification "Welcome to the Revised Edition of the Australian Soil Classification...
World Reference Base for Soil Resources "The WRB is a soil classification system for naming soils and creating soil map legends...
New Zealand Soil Classification "The New Zealand Soil Classification was developed in the 1980s...
Thesaurus Foundation for Biodiversity Research "This thesaurus has been developed according to a thematic classification at two hierarchical levels: each chapter is associated with a limited number of keywords (generally less than 50) In order to avoid redundancy of keywords, each of these Is allocated to one or two themes maximum...
San Diego Zoo Global Library Subject Terms (Thesaurus) "The following is a list of terms used to index the holdings of the Society Library...
Thesaurus of the coast "EUROSION document elaborated by the Group of the Institute of Environmental Science and Technology (UAB) on 16 March 2004, in collaboration with the Ministry of Land Infrastructure and Transport (ETSECCPB - UPC)...
Zoological Record Thesaurus "The Zoological Record Thesaurus contains controlled terms used to index records...
Agrotezaver: Flora in Favna "Prek svetovnega spleta (WWW) je dostopno nešteto seznamov rastlin in živali, in to v najrazličnejših jezikih...
Basic Terminology of Stereochemistry "The definitions used in this glossary are identical to those in the published document, see G.P...
Classification of the Biogeographical Provinces of the World "This is a hierarchical system which consists of (1) biogeographic regions, i.e...
Wildland Planning Glossary "More than 1400 terms useful in wildland and related resource planning are defined...
Finnish Names of Plants "Kasvien suomenkieliset nimet ­-ontologia tarjoaa kattavan kokoelman suomenkielisiä nimiä ja niiden tieteellisiä vastineita...
Long Term Ecological Research Network Controlled Vocabulary "911 Terms, 462 Relations between terms, 196 Non preferred terms."...
Classification of Environmental Protection Activities and Expenditure "CEPA is a functional classification used to classifiy activities, products, outlays and other transactions whose primary purpose is environmental protection...
National Vegetation Classification "The National Vegetation Classification (NVC) is one of the key common standards developed for the country nature conservation agencies...
New Zealand Threat Classification System "The New Zealand Threat Classification System's long-term goal is to list all extant species that exist here according to their threat of extinction...
Human Genome Project Glossary "The Human Genome Project (HGP) was an international 13-year effort, 1990 to 2003...
AlgaeBase Taxonomy "You can browse though the hierarchy by clicking on the names below and drilling down...
GRIN Taxonomy for Plants "The National Plant Germplasm System of the Agricultural Research Service, U.S...
On-Line Glossary of Technical Terms in Plant Pathology "Each entry consists of a term (in bold), a definition of the term, and a number in parentheses indicating the source of the definition...
Swiss Wildlife Information Service Keyword catalogs (Thesaurus) "Keywords (German, English): alphabetically arranged list for the reproduction of the content of a publication, synonymously used terms are placed behind the keyword in brackets (" also includes "), references to similar keywords are listed under") (German, English) or systematically (German, English) Parasitology / Diseases (German, English): For diseases the respective pathogens are used as keywords, diseases are listed as synonyms."...
Thésaurus de l'Institut Agronomique Méditerranéen de Montpellier "C'est une liste de mot-clés, organisés, qui permettent aux documentalistes de décrire la thématique et le contenu des documents La partie supérieure vous renvoie les mot-clés correspondants à votre recherche...
The Institute of Electrical and Electronics Engineers Taxonomy "The IEEE Taxonomy comprises the first three hierarchical 'levels' under each term-family (or branch) that is formed from the top-most terms of the IEEE Thesaurus...
Thesaurus of Animal Biology "The ICYT Thesaurus of Animal Biology, developed within the framework of this project, was born from the concrete need to standardize, update and structure the scientific terms used for documentary analysis in the field of Animal Biology.There is no other thesaurus on this This option was more appropriate than the translation and adaptation of a thesaurus in a foreign language, because it was better adapted to the specific needs of that database...
Italian thesaurus of Earth Sciences "The objective of creating an Italian thesaurus of earth sciences stems from the desire to do justice to terminology and documentary complexity of our prestigious national heritage, muffled still largely imported from indexing tools and therefore often improper...
INRAE Thesaurus "open and shared thesaurus covering INRAE's research fields...		API
Fauna Europaea Fauna Europaea is Europe's main zoological taxonomic index...
Uberon Uberon is an anatomical ontology that represents body parts, organs and tissues in a variety of animal species, with a focus on vertebrates...
Archäologisches Museum Hamburg – Stadtmuseum Harburg/Helms-Museum: Material terms		API
The European Science Vocabulary (EuroSciVoc) "EuroSciVoc is a multilingual taxonomy that represents all the main fields of science that were discovered from CORDIS content and organised through a semi-automatic process based on NLP techniques...
European Science Vocabulary (EuroSciVoc) European Science Vocabulary (EuroSciVoc) is the taxonomy of fields of science based on OECD's 2015 Frascati Manual taxonomy...		API
EUropean Research Information Ontology (EURIO) EURIO (EUropean Research Information Ontology) conceptualises, formally encodes and makes available in an open, structured and machine-readable format data about resarch projects funded by the EU's framework programmes for research and innovation....		API
Mathematics Subject Classification System (MSC2020) "Mathematical Reviews (MR) and zbMATH collaborate on maintaining the Mathematics Subject Classification, which is used by these reviewing services, publishers, funding agencies, and others to categorize items in the mathematical sciences literature...		API
Classification scheme of the Bibliographia Cartographia (BC) This classification scheme structures a collection of cartographic contents...		API
Thesaurus of the Vienna Museum of Science and Technology The thesaurus contains data about technical terms and classes from the Thesaurus of the Vienna Museum of Science and Technology....		API