noun
Anatomical term for the visible outer part of the ear. Dated; in modern medical contexts 耳介 (じかい) is more common.
See also: 耳介
耳殻は音を集める役割を持つ。
The auricle has the role of collecting sound.
解剖学の授業で耳殻の構造を学んだ。
We learned the structure of the pinna in anatomy class.