Webster's Online Dictionary
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Common Expressions: HEARING TEST

ExpressionsDefinition
Hearing testA hearing test is an evaluation of the sensitivity of a person's sense of hearing, most often performed by an audiologist. Audiologists are the only health professionals with extensive training on the anatomy and physiology of hearing, and are the only health professionals certified to perform diagnostic hearing tests. It is used to determine a person's hearing sensitivity at different frequencies. (references)

Source: compiled by the editor from various references; see credits.

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Specialty Expressions: HEARING TEST

ExpressionsDomainDefinition
Hearing testGeologyThis involves the delivery of pure sound frequencies by both air and bone conduction from 125 to 8000 hertz (cycles per second) at intensities from 0 to 110 decibels (dB). The threshold for sound perception is recorded and charted on a graph. It is possible to differentiate conductive hearing loss from sensorineural hearing loss. Furthermore, by measuring brain stem evoked response, it is possible to perform this test on individuals who cannot cooperate. (references)
Hearing testLaborHearing test employs an audiometer, an attenuator, an interrupter switch, and an earphone to determine the threshold of hearing, hearing defect and deterioration. Source: European Union. (references)
Periodic hearing testPhysicsThey should show the development of hearing loss which at the outset may be only temporary, and act as a warning both to the individual himself and to the management. Source: European Union. (references)

Source: compiled by the editor from various references; see credits.

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