Pronunciation: (hwip'lash", wip'-),[key] —n. 1. the lash of a whip.
2. an abrupt snapping motion or change of direction resembling the lash of a whip.
3. Also,whip'lash in"jury.a neck injury caused by a sudden jerking backward, forward, or both, of the head: Whiplash resulted when their car was struck from behind. 4. Also called whip'lash curve". a connected series of reverse curves of more or less elliptical form, used as a major design motif in the Art Nouveau style.
—v.t. 1. to beat, hit, throw, etc., with or as if with a whiplash.
2. to affect adversely, as by a sudden change: new taxes whiplashing corporate earnings.