artificial-ear

artificial ear

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cochlear implant

noun
a device consisting of microelectrodes that deliver electrical stimuli directly to the auditory nerve when surgically implanted into the cochlea, enabling a person with sensorineural deafness to hear.
Also called artificial ear.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
cochlear implant (ˈkɒklɪə)
 
n
a device that stimulates the acoustic nerve in the inner ear in order to produce some form of hearing in people who are deaf from inner ear disease

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
cochlear implant   (kŏk'lē-ər)  Pronunciation Key 
A surgically implanted electronic device that allows people with severe hearing loss to recognize some sounds. It consists chiefly of a microphone and receiver, a processor that converts speech into electronic signals, and an array of electrodes that transmit the signals to the auditory nerve in the inner ear.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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