hearing aid


  1. a compact electronic amplifier worn to improve one’s hearing, usually placed in or behind the ear.


  1. a device for assisting the hearing of partially deaf people, typically consisting of a small battery-powered electronic amplifier with microphone and earphone, worn by a deaf person in or behind the ear


  1. A small electronic apparatus that amplifies sound and is worn in or behind the ear to compensate for impaired hearing.
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