耳鼓 Traditional form: 耳鼓 Pinyin (reading): ěrgǔ Definitions: eardrum tympanum (of the middle ear) tympanic membrane Characters: 耳 - ear; to hear, to hear of; handle 鼓 - drum; to beat, to strike; to rouse Traditional characters: 耳 - ear; to hear, to hear of; handle 鼓 - drum; to beat, to strike; to rouse