Pronunciation: (fûr'kyu-lu), [key]
—pl. -laePronunciation: (-lē"). [key]
1. the forked clavicular bone of a bird; wishbone.
2. the ventral, forked appendage on the abdomen of a springtail that the insect uses in springing itself into the air.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.