concha
/ˈkɒŋkə/noun
(pl. conchae /-kiː/ )
1- Anatomy & Zoology a part resembling a spiral shell, in particular【剖, 动】蛤壳, 螺壳状部分, 尤指：
1.1
- the depression in the external ear leading to its central opening耳廓, 耳甲。
1.2
- （亦作nasal concha）any of several thin, scroll-like (turbinate) bones in the sides of the nasal cavity鼻甲。
词源
late 16th cent.: from Latin （see CONCH）.