Curculio \Cur*cu"li*o\ (k?r-r?"l?-?), n.; pl. {Curculios} (-?z). [L., a grain weevil.] (Zo["o]l.) One of a large group of beetles ({Rhynchophora}) of many genera; -- called also {weevils}, {snout beetles}, {billbeetles}, and {billbugs}. Many of the species are very destructive, as the plum curculio, the corn, grain, and rice weevils, etc.