Pinna (noun) Definition, Meaning & Examples

noun, plural pin·nae [pin-ee], /ˈpɪn i/, pin·nas.
  1. one of the primary divisions of a pinnate leaf.
  2. Zoology.
    • a feather, wing, or winglike part.
    • a fin or flipper.
  3. auricle (def. 1a).
noun plural -nae (-niː) or -nas
  1. any leaflet of a pinnate compound leaf
  2. a feather, wing, fin, or similarly shaped part
  3. another name for auricle (def. 2)
Plural pinnae (pĭnē) pinnas
    Pinna (noun) Definition, Meaning & Examples

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