noun
tensor tympani muscle
Anatomical term for the small muscle in the middle ear that tenses the tympanic membrane.
鼓膜張筋は、大きな音から内耳を保護する役割がある。
The tensor tympani muscle plays a role in protecting the inner ear from loud sounds.
Compound of 鼓膜 (こまく, 'tympanic membrane') + 張筋 (ちょうきん, 'tensor muscle').