pinnate(redirected from pinnations)
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top: pinnate leaf
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Resembling a feather in having parts or branches arranged on each side of a common axis: pinnate leaves; pinnate gills.
pinnate(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]
pin•nate(ˈpɪn eɪt, -ɪt)
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.
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.
adj (Bot) → gefiedert