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1. Having a diminished or defective sense of hearing, but not deaf; hard of hearing.
2. Completely incapable of hearing; deaf.
n. (used with a pl. verb)
Persons who are deficient in hearing or are deaf. Used with the: The hearing-impaired are provided with special services at school.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
having reduced or deficient hearing ability.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.