Carinate \Car"i*nate\, Carinated \Car"i*na`ted\a. [L. carinatus, fr. carina keel.]

Shaped like the keel or prow of a ship; having a carina or keel; as, a carinate calyx or leaf; a carinate sternum (of a bird).

Source: Webster's Revised Unabridged Dictionary (1913)