Real Dictionary

Carina in American English
a S constellation between Vela and Pictor containing the bright star Canopus
a structure or part resembling a keel or ridge, as the projection on the breastbone of a bird
noun: a keellike part or ridge, esp. a ridge of bone on the ventral side of the sternum of birds
noun: the Keel, a southern constellation, containing the bright star, Canopus: one of the constellations into which Argo is divided

carina in British English
noun: a keel-like part or ridge, as in the breastbone of birds or the fused lower petals of a leguminous flower
noun: a large conspicuous constellation in the S hemisphere close to the Southern Cross that contains Canopus, the second brightest star in the sky. It was originally considered part of Argo