Meaning of pinnule

pin•nule

Pronunciation: (pin'yl), [key]
— n.
    1. a part or organ resembling a barb of a feather, a fin, or the like.
    2. a finlet.
  1. a secondary pinna, one of the pinnately disposed divisions of a bipinnate leaf.
  2. a metal plate with a small hole in it, used as a sight in a quadrant.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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