1. (noun) 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

• anatomical structure
• bodily structure
• body structure
• complex body part
• structure

1. (noun) a keel-shaped constellation in the southern hemisphere; contains the start Canopus

• canopus

1. (noun) 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

• carina fornicis
• keel