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1. Oxford Dictionary

   pinna

   • IPA[ˈpɪnə]

   英式

   • n.
     the external part of the ear in humans and other mammals; the auricle.；a primary division of a pinnate leaf, especially of a fern.

   • noun: pinna, plural noun: pinnae

2. • 釋義

   n.

   名詞

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

   pinna

   • IPA[ˈpinə]

   美式

   • n.
     the external part of the ear in humans and other mammals; the auricle.

   Oxford American Dictionary