Lupulin
Pronunciation : Lu"pu*lin
Part of Speech : n.
Etymology : [Cf. F. lupulin. See Lupuline.]
Definition : 1. (Chem.)
Defn: A bitter principle extracted from hops.
2. The fine yellow resinous powder found upon the strobiles or fruit of hops, and containing this bitter principle. [Written also lupuline.]
Source : Webster's Unabridged Dictionary, 1913