pinnae

pinna

[pin-uh]
noun, plural pinnae [pin-ee] , pinnas.
1.
Botany. one of the primary divisions of a pinnate leaf.
2.
Zoology.
a.
a feather, wing, or winglike part.
b.
a fin or flipper.
3.
Anatomy, auricle ( def 1a ).

Origin:
1660–70; < Latin: feather, wing, fin

pinnal, adjective
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World English Dictionary
pinna (ˈpɪnə)
 
n , pl -nae, -nas
1.  any leaflet of a pinnate compound leaf
2.  zoology a feather, wing, fin, or similarly shaped part
3.  another name for auricle
 
[C18: via New Latin from Latin: wing, feather, fin]

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American Heritage
Medical Dictionary

pinna pin·na (pĭn'ə)
n. pl. pin·nae (pĭn'ē)
See auricle.


pin'nal adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
pinna   (pĭn'ə)  Pronunciation Key 
Plural pinnae (pĭn'ē) or pinnas
A leaflet or primary division of a pinnately compound leaf, especially of a fern frond.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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