| n. | 1. | (Bot.) A keel |
| 2. | (Zool.) The keel of the breastbone of birds. |
| Noun | 1. | Carina - a keel-shaped constellation in the southern hemisphere; contains the start Canopus |
| 2. | carina - 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 |