Costa
Pronunciation : Cos"ta (ks"t)
Part of Speech : n.
Etymology : [L., rib. See Coast.]
Definition : 1. (Anat.)
Defn: A rib of an animal or a human being.
2. (Bot.)
Defn: A rib or vein of a leaf, especially the midrib.
3. (Zo?l.) (a) The anterior rib in the wing of an insect. (b) One of the riblike longitudinal ridges on the exterior of many corals.
Source : Webster's Unabridged Dictionary, 1913