costa

  1. Noun.  (anatomy) A rib.
  2. Noun.  (biology) A riblike part of a plant or animal, such as a middle rib of a leaf or a thickened vein or the margin of an insect wing.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.