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). In some cases terms and definitions have also been collected from earlier publications (e.g. from TC 37, 77, 86 and CISPR). The database contains currently some 40,000 items drawn from 1,800 publications, with new ones being added on a continuous basis. (...) The Glossary complements and in many cases draws from the International Electrotechnical Vocabulary (IEV) published by TC 1 (Terminology).