A summer constellation of the southern sky, said to resemble the keel of a ship. It contains the star Canopus, the second brightest star in the night sky. Until 1763, it was part of a larger constellation, Argo Navis
a keel-shaped constellation in the southern hemisphere; contains the start Canopus
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 a keel-shaped constellation in the southern hemisphere; contains the start Canopus
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
A keel That part of a papilionaceous flower, consisting of two petals, commonly united, which incloses the organs of fructification A longitudinal ridge or projection like the keel of a boat