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pinna – noun pin·na | \ ˈpi-nə \plural pinnae\ ˈpi-ˌnē, -ˌnī \ or pinnas• a projecting body part (such as a feather, wing, or fin)• the largely cartilaginous projecting portion of the external ear• conducive to the inner ear, in which, with the judgment of other body parts — in flesh and beyond it —…