tympanum
英 [ˈtɪmpənəm]
美 [ˈtɪmpənəm]
n. 鼓膜; 耳膜
BNC.43970 / COCA.38454
牛津词典
noun
- 鼓膜；耳膜
the eardrum
英英释义
noun
- a large hemispherical brass or copper percussion instrument with a drumhead that can be tuned by adjusting the tension on it
- the membrane in the ear that vibrates to sound
- the main cavity of the ear