ETHYL Meaning of ETHYL in English [ 'ɛθʌɪl , -θɪl , 'i:- ]■ noun [as modifier ] Chemistry of or denoting the alkyl radical ‒C 2 H 5 , derived from ethane.OriginC19: from Ger., from Äther 'ether' + -yl . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004