- the middle portion of the ear, consisting of the tympanic membrane and an air-filled chamber lined with mucous membrane, that contains the malleus, incus, and stapes.Compare ear1(def 1).
- the sound-conducting part of the ear, containing the malleus, incus, and stapes
- The space located between the eardrum and the inner ear that contains the three auditory ossicles, which convey vibrations through the oval window to the cochlea.tympanic cavity tympanum
- The part of the ear in most mammals that contains the eardrum (tympanic membrane) and the three ossicles (malleus, incus, and stapes) which transmit sound vibrations from the eardrum to the inner ear. See more at ear1.
A part of the ear on the inner side of the eardrum; it contains three small bones that transmit sound waves to the inner ear from the eardrum.