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pinna

Pronunciation: /ˈpɪnə/

Definition of pinna

noun (plural pinnae /-niː/)

  • 1 Anatomy & Zoology the external part of the ear in humans and other mammals; the auricle.
  • 2 Botany a primary division of a pinnate leaf, especially of a fern.
  • 3 Zoology any of a number of animal structures resembling fins or wings.

Origin:

late 18th century: modern Latin, from a variant of Latin penna 'feather, wing, fin'

pinna in other Oxford dictionaries

Definition of pinna in the US English dictionary

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