Pronunciation: (klav'i-kul), [key]
—n. Anat., Zool.
1. a bone of the pectoral arch.
2. (in humans) either of two slender bones, each articulating with the sternum and a scapula and forming the anterior part of a shoulder; collarbone. See diag. under shoulder.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.