(definition) by Webster 1913 Tue Dec 21 1999 at 22:45:13

Cos"ta (k?s"t?), n. [L., rib. See Coast.]

1. Anat.

A rib of an animal or a human being.

2. Bot.

A rib or vein of a leaf, especially the midrib.

3. Zool. (a)

The anterior rib in the wing of an insect.

(b)

One of the riblike longitudinal ridges on the exterior of many corals.

 

© Webster 1913.

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