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Definition of In-the-canal hearing aid

In-the-canal hearing aid: A hearing instrument custom designed to fit in the ear canal. It protrudes slightly into the outer ear and so is visible. In-the-canal (ITC) instruments are appropriate for mild to moderate hearing losses but not for infants or young children. See also: Hearing aid.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=22603
Last Editorial Review: 10/9/2012

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