What is the meaning of Carina?

A longitudinal ridge or projection like the keel of a boat.

Part of a papilionaceous flower consisting of two petals, commonly united, which encloses the organs of fructification.

The keel of the breastbone of birds.

Any of several features that have a projecting central ridge

definite nominative singular of carinë

feminine singular of carino

keel or hull of a ship

ship

half of a walnut shell

customs

The keel of the breastbone of birds.

Source: wiktionary.org