Pinnule (noun) Definition, Meaning & Examples

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noun
  1. Zoology.
    • a part or organ resembling a barb of a feather, a fin, or the like.
    • a finlet.
  2. a secondary pinna, one of the pinnately disposed divisions of a bipinnate leaf.
  3. a metal plate with a small hole in it, used as a sight in a quadrant.
noun plural pinnules or pinnulae (ˈpɪnjʊˌliː)
  1. any of the lobes of a leaflet of a pinnate compound leaf, which is itself pinnately divided
  2. any feather-like part, such as any of the arms of a sea lily
    Pinnule (noun) Definition, Meaning & Examples

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