n.; pl.Curculios [ L., a grain weevil. ] (Zool.) 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. [ 1913 Webster ]