Dictionary

pinna

pinna

noun pin·na \ˈpi-nə\
plural pin·nae \ˈpi-ˌnē, -ˌnī\ or pinnas

Definition of PINNA

1
a :  a projecting body part (as a feather, wing, or fin)
b :  the largely cartilaginous projecting portion of the external ear — see ear illustration
2
:  a leaflet or primary division of a pinnate leaf or frond

Origin of PINNA

New Latin, from Latin, feather, wing — more at pen
First Known Use: 1719

pinna

noun pin·na \ˈpin-ə\   (Medical Dictionary)
plural pin·nae \ˈpin-ˌē, -ˌī\ or pinnas

Medical Definition of PINNA

:  the largely cartilaginous projecting portion of the external ear
pin·nal \ˈpin-əl\ adjective

Illustration of PINNA

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