tympana

名词 tympanum:

1. the main cavity of the ear; between the eardrum and the inner ear
   同义词：middle ear, tympanic cavity, tympanum
2. the membrane in the ear that vibrates to sound
   同义词：eardrum, tympanum, tympanic membrane, myringa
3. 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