BUTYRIC ACID Meaning of BUTYRIC ACID in English [ bju:'tɪrɪk ]■ noun Chemistry a syrupy liquid organic acid present in rancid butter and in arnica oil; butanoic acid.OriginC19: from L. butyrum (see butter ) + -ic . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004