Cerin \Ce"rin\, n. [L. cera wax + -in: cf. L. cerinus wax-colored.] 1. (Chem.) A waxy substance extracted by alcohol or ether from cork; sometimes applied also to the portion of beeswax which is soluble in alcohol. --Watts. [1913 Webster] 2. (Min.) A variety of the mineral allanite. [1913 Webster]