Dictionary

tympanic membrane

noun

Definition of TYMPANIC MEMBRANE

:  a thin membrane that closes externally the cavity of the middle ear and functions in the mechanical reception of sound waves and in their transmission to the site of sensory reception —called also eardrum — see ear illustration

First Known Use of TYMPANIC MEMBRANE

1855

tympanic membrane

noun    (Medical Dictionary)

Medical Definition of TYMPANIC MEMBRANE

:  a thin membrane separating the middle ear from the inner part of the external auditory canal that vibrates in response to sound energy and transmits the resulting mechanical vibrations to the structures of the middle ear—called also eardrum, tympanum

Illustration of TYMPANIC MEMBRANE

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