n. [ Cf. F. lupulin. See Lupuline. ]
n. [ NL. lupulus the hop, fr. L. lupus the hop: cf. F. lupuline. ] (Chem.) An alkaloid extracted from hops as a colorless volatile liquid. [ 1913 Webster ]
a. (Chem.) Pertaining to, or obtained from, hops; specifically, designating an acid obtained by the decomposition of lupulin. [ 1913 Webster ]