Lupine \Lu"pine\, n. [L. lupinus, lupinum, apparently fr. lupinus belonging to a wolf, fr. lupus a wolf; perh. so called because it was supposed to exhaust the soil: cf. F. lupin. Cf. {Wolf}.] (Bot.) A leguminous plant of the genus {Lupinus}, especially {L. albus}, the seeds of which have been used for food from ancient times. The common species of the Eastern United States is {L. perennis}. There are many species in California.