Hypertext Webster Gateway: "costa"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Costa \Cos"ta\ (k[o^]s"t[.a]), 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. (Zo["o]l.)
(a) The anterior rib in the wing of an insect.
(b) One of the riblike longitudinal ridges on the exterior
of many corals.
From WordNet (r) 1.7 (wn)
costa
n 1: a riblike part of a plant or animal (such as a middle rib of
a leaf or a thickened vein of an insect wing)
2: any of the 12 pairs of curved arches of bone extending from
the spine to or toward the sternum in humans (and similar
bones in most vertebrates) [syn: {rib}]
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