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- Dictionaryhearing aid
noun
- 1. a small amplifying device which fits on the ear, worn by a partially deaf person.
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- Hearing aid
A hearing aid is a device designed to improve hearing by making sound audible to a person with hearing loss. Hearing aids are classified as medical devices in most countries, and regulated by the respective regulations. Small audio amplifiers such as personal sound amplification products (PSAPs) or other plain sound reinforcing systems cannot be sold as "hearing aids". Wikipedia
