lipic,a.Chem.|ˈlɪpɪk| [f.Gr. λίπ-ος fat + -ic.] lipic acid: a crystallizable acid produced by the action of nitric acid upon a fatty acid. 1852Brande Dict.Sci. etc. Suppl., Lipic acid, an acid formed by acting upon stearic and oleic acid, by means of nitric acid.1865in Watts Dict.Chem.