- carina⇄carina, noun, pl.-nae.
1. (Zoology.) a structure or part having the form of a ridge or keel, such as the middle ridge on the breastbone of most birds.
2. (Botany.) the lower, keel-shaped pair of petals, characteristic of flowers of the pea fa - Carina⇄Carina, noun.
one of the four constellations into which the large southern constellation Argo has been divided; the Keel. It contains Canopus, a large, extremely bright star.