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pinnula

[pin-yuh-luh] /ˈpɪn yə lə/
noun, plural pinnulae
[pin-yuh-lee] /ˈpɪn yəˌli/ (Show IPA)
1.
a pinnule.
2.
a barb of a feather.
Origin
1740-1750
1740-50; < Latin, diminutive of pinna pinna; see -ule
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for pinnula

pinnule

/ˈpɪnjuːl/
noun (pl) pinnules, pinnulae (ˈpɪnjʊˌliː)
1.
any of the lobes of a leaflet of a pinnate compound leaf, which is itself pinnately divided
2.
(zoology) any feather-like part, such as any of the arms of a sea lily
Derived Forms
pinnular, adjective
Word Origin
C16: from Latin pinnula, diminutive of pinna feather
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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