Word Study
carinate
CIDE DICTIONARY
carinate, a. [L. carinatus, fr. carina keel.].
Shaped like the keel or prow of a ship; having a carina or keel; as, a carinate calyx or leaf; a carinate sternum (of a bird). [1913 Webster]
OXFORD DICTIONARY
carinate, adj. (of a bird) having a keeled breastbone (opp. RATITE).
Etymology
L carinatus keeled f. carina keel
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