Pronunciation: (flip'ur), [key]
1. a broad, flat limb, as of a seal or whale, especially adapted for swimming.
2. Also called fin. one of a pair of paddlelike devices, usually of rubber, worn on the feet as an aid in scuba diving and swimming.
3. Theat.a narrow flat hinged or attached at right angles to a larger flat.
4. Slang.the hand.
5. someone or something that flips.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.