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pinnas

Variant of pinna

noun pl. pinnae or pinnas

Anat. the external ear; auricle
Bot. a primary division of a pinnately compound leaf, esp. of a fern leaf
Zool. a feather, wing, fin, or similar structure

Related Forms:

pinnal adjective

Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.

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