BUTYL Meaning of BUTYL in English [ 'bju:tʌɪl , -tɪl ]■ noun [as modifier ] Chemistry of or denoting an alkyl radical ‒C 4 H 9 , derived from butane: ~ acetate. OriginC19: from butyric acid + -yl . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004