pinna
[ pin-uh ]
/ ˈpɪn ə /
noun, plural pin·nae [pin-ee] /ˈpɪn i/, pin·nas.
Botany. one of the primary divisions of a pinnate leaf.
Zoology.
- a feather, wing, or winglike part.
- a fin or flipper.
Anatomy. auricle(def 1a).
Nearby words
Origin of pinna
1660–70; < Latin: feather, wing, fin
Related formspin·nal, adjective
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for pinna
British Dictionary definitions for pinna
pinna
/ (ˈpɪnə) /
noun plural -nae (-niː) or -nas
any leaflet of a pinnate compound leaf
zoology a feather, wing, fin, or similarly shaped part
another name for auricle (def. 2)
Word Origin for pinna
C18: via New Latin from Latin: wing, feather, fin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Medicine definitions for pinna
pinna
[ pĭn′ə ]
n. pl. pin•nae (pĭn′ē)
auricle
Related formspin′nal adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for pinna
pinna
[ pĭn′ə ]
Plural pinnae (pĭn′ē) pinnas
A leaflet or primary division of a pinnately compound leaf, especially of a fern frond.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.