ACETONITRILE Meaning of ACETONITRILE in English [ əˌsi:tə(ʊ)'nʌɪtrʌɪl , ˌasɪtəʊ- ]■ noun Chemistry a toxic odoriferous liquid, used as a solvent in high-performance liquid chromatography. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004