NITRILE Meaning of NITRILE in English [ 'nʌɪtrʌɪl ]■ noun Chemistry an organic compound containing a cyanide group ‒CN bound to an alkyl group.OriginC19: from nitre + -ile (alt. of -yl ). Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004