pin·na
noun/ˈpɪnə/
/ˈpɪnə/
(plural pinnae
(anatomy)/ˈpɪni/
/ˈpɪni/
)- the part of the ear that is on the outside of the body
耳朵位于身体外侧的部分 Word Originlate 18th cent.: modern Latin, from a variant of Latin penna ‘feather, wing, fin’.