BENZOYL Meaning of BENZOYL in English [ 'bɛnzəʊʌɪl, -zəʊɪl ]■ noun [as modifier ] Chemistry of or denoting the acyl radical ‒C(O)C 6 H 5 , derived from benzoic acid. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004