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pinnate

[pin-eyt, -it] /ˈpɪn eɪt, -ɪt/
adjective
1.
resembling a feather, as in construction or arrangement; having parts arranged on each side of a common axis:
a pinnate branch; pinnate trees.
2.
Botany. (of a leaf) having leaflets or primary divisions arranged on each side of a common stalk.
Also, pinnated.
Origin
1695-1705
1695-1705; < Latin pinnātus feathered, winged. See pinna, -ate1
Related forms
pinnately, pinnatedly, adverb
multipinnate, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for pinnated

pinnate

/ˈpɪneɪt; ˈpɪnɪt/
adjective
1.
like a feather in appearance
2.
(of compound leaves) having the leaflets growing opposite each other in pairs on either side of the stem
Derived Forms
pinnately, adverb
pinnation, noun
Word Origin
C18: from Latin pinnātus, from pinna feather
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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pinnated in Science
pinnate
  (pĭn'āt')   

Having parts or divisions arranged on each side of a common axis in the manner of a feather. Ash, hickory, and walnut trees have pinnate leaves.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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