butanoic acid

English Thesaurus

1. an unpleasant smelling fatty acid found especially in butter (noun.substance)

hypernym	:	saturated fatty acid,
definition	:	a fatty acid whose carbon chain cannot absorb any more hydrogen atoms; found chiefly in animal fats (noun.substance)

hyponym	:	hydroxybutyric acid, oxybutyric acid,
definition	:	hydroxy derivative of butyric acid (noun.substance)