- middle ear, tympanic cavity, tympanum - the main cavity of the ear; between the eardrum and the inner ear
--1 is a kind of cavity, bodily cavity, cavum
--1 is a part of auditory apparatus
--1 has parts:ossicle, bonelet, ossiculum; Eustachian tube, auditory tube; malleus, hammer; incus, anvil; stapes, stirrup