valerinChem.|ˈvælərɪn| [f. as prec. + -in.] (See quots.) 1866W. Odling Anim.Chem. 93 By combining valeric acid with glycerin we produce valerin, a constituent of whale oil.1868Watts Dict.Chem. V. 980 Valerins, glycerides produced by heating valeric acid with glycerin.