carina

n., pl., -nae (-nē).
A keel-shaped ridge or structure, such as that on the breastbone of a bird or of the fused lower two petals of flowers of many members of the pea family.

[Latin carīna, keel.]

(kə-rī'nə, -rē'-)
n., pl. -nae (-nē).

A keel-shaped ridge or structure, such as the ridge on the under surface of the fornix of the brain.

Pl. carinae [L.] a ridgelike structure.

• c. apex — the most cranial point of the keel of the sternum of birds.
• sternal c. — the keel of the sternum, as in birds and horses.
• c. tracheae — a ridge between the openings of the right and left principal bronchi.

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The noun has one meaning:

Meaning #1: any of various keel-shaped structures or ridges such as that on the breastbone of a bird or that formed by the fused petals of a pea blossom

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miele carina	miele carina s 4210