pinnaWiktionary 原文/ˈpɪnə/词源链拉丁语Latin约前 75–公元 3 世纪pinna‘dorsal fin; wing, feather’↓ 派生英语Englishpinna词源说明From Latin pinna (“dorsal fin; wing, feather”). Doublet of pen, penna, and panne.释义名词noun1(anatomy, zoology) The visible part of the ear in most therians that resides outside of the head, the auricle; outer ear excluding the ear canal.2(botany) A leaflet or primary segment of a pinnate