tympanum
英 ['tɪmpənəm]
美['tɪmpənəm]
释义
n. [无脊椎] 鼓室；[解剖][无脊椎] 鼓膜，耳膜；振动膜
词态变化
复数: tympanums; tympana;
中文词源
tympanum 鼓膜，耳膜来自拉丁语 tympanum,鼓，来自希腊语 typtein,敲击，敲打，词源同 type.引申词义鼓膜，耳 膜等。
英文词源
- tympanum (n.)
- "drum of the ear," 1610s, from Medieval Latin tympanum, introduced in this sense by Italian anatomist Gabriello Fallopio (1523-1562), from Latin tympanum "a drum, timbrel, tambourine," from Greek tympanon "a kettledrum," from root of typtein "to beat, strike" (see type (n.)). Compare Old English timpan "drum, timbrel, tambourine," from Latin tympanum. The modern meaning "a drum" is attested in English from 1670s.
英英释意
- 1. the main cavity of the ear; between the eardrum and the inner ear
- 2. the membrane in the ear that vibrates to sound
- 3. a large hemispherical brass or copper percussion instrument with a drumhead that can be tuned by adjusting the tension on it
