Pronunciation: kă-rī′nă, -rī′nē
- In humans, a term applied or applicable to several anatomic structures forming a projecting central ridge.
- That portion of the sternum in a bird, bat, or mole that serves as the origin of the pectoral muscles; it is not found in flightless birds or in most mammals.
[L. the keel of a boat]
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Examples: glitazone, GI cocktail, etc.