umbo
英
美
n. 盾中心的浮雕；壳嘴；鼓膜凸; （菌盖的）中心突起；突起；肩剌；（鳞）脐; （两瓣贝的）壳顶； 盾顶
双语例句
- Results: The results showed that the effusion of the middle ear decrease the amplitude of stapes footplate and umbo, weaken the incoming energy of the inner ear, thus leading to hearing loss.
结果：中耳积液导致鼓膜凸和镫骨底板的振幅减少，使得传入内耳的能量减弱，导致听力损失。
英英释义
noun
- a slight rounded elevation where the malleus attaches to the eardrum