1. [ noun ] (astronomy) a keel-shaped constellation in the southern hemisphere; contains the start Canopus
Related terms: constellation canopus argo
2. [ noun ] Woman's first name, popularity rank in the U.S. is 1599
3. [ noun ] (zoology) 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
Related terms: structure keel carina_fornicis
Similar spelling:   Cairina