ear drum

基本解释

Conclusions: Children's middle-ear diseases, such as negative pressure, SOM, AOM, and atrophic scar on the ear drum, may influence the results of DPOAE.
结论：儿童的中耳疾病，如中耳负压、中耳积液、急性中耳炎、鼓膜萎缩性瘢痕，均可能造成变频耳声传射的消失。
The chorus of warnings was echoed by the Shanghai Daily, which wrote: "A strong kiss may cause an imbalance in the air pressure between two inner ears and lead to a broken ear drum."
而《上海日报》给出了另一种解释：“激吻会使得压力不平衡，最终导致鼓膜破裂。”
Farewell the neighing steed, and the shrill trump, The spirit-stirring drum, the ear-piercing fife, The royal banner, and all quality, Pride, pomp and circumstance of glorious war!
永别了，长嘶的骏马、锐厉的号角、惊魂的鼙鼓、刺耳的横笛、庄严的大旗和一切战阵上的威仪！

Sound travels through the ear drum, the middle ear, and is then processed by the inner ear.
FORBES: Deaf People Will Hear
It's not quite implantable, but Insound Medical's new Lyric hearing aid is about as close as you can get, with it designed to squeeze in deep in your ear canal and sit just a few millimeters from your ear drum.
ENGADGET: Insound's Lyric hearing aid cozies up right next to your ear drum
When nearly 30 years ago Dr. Jacob Fraden invented an ear thermometer working on this second principle, the infrared light sensor was so large that he needed a narrow gold-plated reflective tube to channel the light from the ear drum to the sensor.
FORBES: Body temperature.

Your eardrums are the thin pieces of tightly stretched skin inside each ear that vibrate when sound waves reach them.