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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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adv.1.pinnately - having a pinnate shape; "a pinnately compound leaf"
References in periodicals archive ?
Their leaves are pinnately compound, usually sclerophyllous, often bear spines on the leaflet margins, and are typically long-lived (1-3 years, or more) (Chamberlain, 1919; Jones, 1993; Whitelock, 2002; Grobbelaar, 2004).
These results are not entirely surprising; the family name Zygophyllaceae comes from the evenly pinnately compound leaves, yet V.
Leaf blade oblong-elliptic to elliptic-ovate, 13-45 cm long; base asymmetrical in sympodial leaves, cordate to deeply auriculate, the biggest lobe half or completely overlapping the petiole; pinnately veined with 8-16 secondary veins; ciliate and minutely pubescent on both surfaces.
Rhus glabra possesses pinnately compound leaves, which differ from simple leaves in their plane of symmetry (Bharathan and Sinha, 2001).
Giant pinnately compound leaves and fistfuls of flowers simply explode from pale, egg-shaped buds.
5 cm, with a cuneate base that runs decurrent almost to the base of the petiole, glabrous on both sides but the upper side warty, margin slightly undulate, venation pinnately veined, midvein impressed above, prominent below, secondary veins 10-12 ascending pairs, tertiary veins obscurely reticulate, apex obtuse to acute.
It grows in densely woven mats and is pinnately branched.
Leave: The alternate leaves, 6-11 cm long, are pinnately compound with three to nine leaflets alternating on the rachis.
The leaves of this wildflower are pinnately compound and do look somewhat like a ladder It has clusters of nodding, pale blue bell-shaped flowers.
Leaves are simple, alternate, pinnately or bipinnately dissected (Figure 1(a)), 20-30 x 12-25 cm, becoming smaller towards the apex of the branches.
frutescens is a perennial leguminous shrub with pinnately compound leaves and bright red flowers which produce inflated bladdery pods.