Having lost the process, function, or power of perceiving sounds. Hearing loss may range from slight tototal deafness.(child, not able to hear, he/she became)
Measured in decibels (dB) and usually described in terms of degree of impairment for hearing conversational speech.
The condition of less than full hearing capacity. The degree of hearing loss can have different terms; hard of hearing, hearing impaired and deaf are three of the more common terms. Unless otherwise specified, hearing loss includes all of these sub-classifications.