carina

Etymology

Borrowed from Latin carīna (“keel”). Doublet of careen and carene.

noun

  1. A longitudinal ridge or projection like the keel of a boat.
  2. (botany) Part of a papilionaceous flower consisting of two petals, commonly united, which encloses the organs of fructification.
  3. (zoology) The keel of the breastbone of birds.
  4. (anatomy) Any of several features that have a projecting central ridge

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