pinnate

Etymology

From Latin pinnātus (“feathered”), from pinna (“feather”).

adj

  1. Resembling a feather.
  2. (botany) Having two rows of branches, lobes, leaflets, or veins arranged on each side of a common axis
    Mimosa is a tree with pinnate leaves.
    The trunk is unbranched, often much shortened, and bears a crown of feathery or pinnate fronds.
  3. (zoology) Having a winglike tuft of long feathers on each side of the neck.
    the pinnate grouse, or prairie chicken
  4. (zoology) Having wings or fins.

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