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Resembling a feather in having parts or branches arranged on each side of a common axis: pinnate leaves; pinnate gills.

[Latin pinnātus, feathered, from pinna, feather; see pet- in Indo-European roots.]

pin′nate′ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈpɪneɪt; ˈpɪnɪt) or


1. (Zoology) like a feather in appearance
2. (Botany) (of compound leaves) having the leaflets growing opposite each other in pairs on either side of the stem
[C18: from Latin pinnātus, from pinna feather]
ˈpinnately adv
pinˈnation n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈpɪn eɪt, -ɪt)

also pin′nat•ed,

1. resembling a feather, as in construction or arrangement; having parts arranged on each side of a common axis: a pinnate branch.
2. (of a leaf) having leaflets or primary divisions arranged on each side of a common stalk.
[1695–1705; < Latin pinnātus feathered, winged. See pinna, -ate1]
pin′nate•ly, adv.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


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® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.pinnate - (of a leaf shape) featherlike; having leaflets on each side of a common axis
compound - composed of more than one part; "compound leaves are composed of several lobes; "compound flower heads"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


adj (Bot) → gefiedert
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
References in classic literature ?
We occasionally though rarely see something of this kind in plants: thus the embryonic leaves of the ulex or furze, and the first leaves of the phyllodineous acaceas, are pinnate or divided like the ordinary leaves of the leguminosae.
Its broad pinnate tropical leaf was pleasant though strange to look on.
The foliage, resembling that of mimosas, has around twenty pinnate leaflets.
The fern genus Campyloneurum includes mostly simple-leaved species, with a few having pinnate fronds (Leon 1992; Moran & Labiak 2017; Labiak & Moran 2018).
This curious shrub, which has the stamina to grow three metres tall, produces handsome pinnate leaves up to 60-90cm long that are blue-tinged when young, and in spring offers up enormous clusters of yellow-green flowers.
Like other rowans it's also great for autumnal colour, its elegant pinnate foliage maturing to red, orange and golden before dropping in autumn.
The state emblem, inspired by the Amaravati School of Art, consists of "Dhamma Chakka" - "the Wheel of Law" embellished with a ring of Triratnas alternating with pinnate leaves and precious stones.
Lots of creamy flowers in spring are followed by wonderful yellow berries in late summer, and in autumn the pinnate foliage turns a deep crimson.
Endopod 2-segmented, shorter than exopod; first segment globose, with 1 long inner seta and row of short setules along inner and outer margins; second segment with 1 inner seta and 1 pinnate spine and 1 slender seta apically.