エチレン系けい炭たん化か水すい素そエチレンけいたんかすいそじ字FuriganaAudioMeanings1nounalkene; olefin; ethylene hydrocarbonrare termRare technical term; in modern chemistry, アルケン is the standard word. This term may appear in older or specialized contexts.See also: アルケンエチレン系けい炭たん化か水すい素そは、かつてアルケンの総そう称しょうとして使つかわれた。Break this sentence down in the analyzerEthylene hydrocarbons were once used as a general term for alkenes.