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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.


(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


(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.


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.
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"


adj (Bot) → gefiedert
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.
This handsome plant has an erect stem containing a circlet of compound pinnate leaves that support a sturdy raceme of pea-like flowers ranging in colour from pale white to deep scarlet.
All the identified weeds of Brassicaceae family are herbaceous, leaves simple, alternate and often lobed, with pinnate venation.
The first pinnate leaves appear after five years, and from then onwards new leaves are all pinnate and steadily larger in size (Angulo 1985).
Coriander Coriadrum sativum is an annual herbaceous plant with strong odorous, 50 cm in height with pinnate leaves white small flowers and round small yellow fruits.
Under suitable conditions and without use of pruning, the plants can reach 12-20 m in height, with stem diameter from 40 to 60 cm, and petiolate leaves, alternate and pinnate, with 2-4 pairs of leaflets arranged alternately or opposite in the rachis, with size ranging from 2 to 10.
The fifth pair of branchiae is pinnate but narrow and only half the length of the first pair of branchiae.
Stems creeping, pinnate irregularly, with a hyalodermis.
yunnanensis is distinguished from congeners in having the following combination of characters: skin smooth with complete lateral line, laterosensory pores haphazardly distributed in pairs; mouth sub-terminal with upper jaw slightly longer than the lower one; lips with papillae, adipose-fin short, with a low and smooth outer edge, posterior end of which rounded and separated from dorsal procurrent rays of caudal-fin by a remarkable notch; no pinnate like rays on caudal-fin rays; body depth at anus 14.