- the main cavity of the ear; between the eardrum and the inner ear
同义词：middle ear, tympanic cavity, tympanum
- the membrane in the ear that vibrates to sound
同义词：eardrum, tympanum, tympanic membrane, myringa
- a large hemispherical brass or copper percussion instrument with a drumhead that can be tuned by adjusting the tension on it
同义词：kettle, kettledrum, tympanum, tympani, timpani
