Tympanometry

A test that measures the function of the middle ear. Tympanometry works by varying the pressure within the ear canal and measuring the movement of the ear drum (the tympanic membrane). The word "tympanometry" is compounded from the Greek "tympanon" meaning drum and "metrein" meaning to measure.
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A technique that measures compliance of the tympanic membrane at various levels of air pressure; helpful in diagnosing middle ear effusion, eustachian tube function, and otitis media.

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tym·pa·nom·e·try (tim″pə-nomґə-tre) indirect measurement of the compliance (mobility) and impedance of the tympanic membrane and ossicles of the middle ear; it is done by subjecting the external acoustic meatus to positive, normal, and negative air pressure and monitoring the resultant sound energy flow. tympanometric adj

Medical dictionary. 2011.

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