a carnivorous plant, Dionaea muscipula, native to bogs of North and South Carolina, having roundish leaves with two lobes that close like a trap when certain delicate hairs on them are irritated, as by a fly: the range is now reduced, though the plants are still locally abundant.
Also called Venus flytrap.
Origin
1760-70, Americanism
British Dictionary definitions for venus flytrap
Venus's-flytrap
noun
1.
an insectivorous plant, Dionaea muscipula, of Carolina, having hinged two-lobed leaves that snap closed when the sensitive hairs on the surface are touched: family DroseraceaeSee also sundew, pitcher plant, butterwort