deaf
(dĕf)adj. deaf·er,
deaf·est 1. Partially or completely lacking in the sense of hearing.
2. often Deaf Of or relating to the Deaf or their culture.
3. Unwilling or refusing to listen; heedless: was deaf to our objections.
n. (used with a pl. verb)1. Deaf people considered as a group. Used with the.
2. often Deaf The community of deaf people who use American Sign Language as a primary means of communication. Used with the.
[Middle English def, deef, from Old English dēaf.]
deaf′ly adv.
deaf′ness n.
Usage Note: The rise of the Deaf Pride movement in the 1980s introduced a distinction between deaf and Deaf, with the capitalized form used specifically in referring to deaf persons belonging to the community—also known as Deaf culture—that has formed around the use of American Sign Language as the preferred means of communication.
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.
Deafness
a type of ear trumpet used by the deaf.
an acronym for the American Sign Language for the Deaf, a system of communication through gestures and hand signals.
loss or absence of the power of hearing.
a form of deafness in which the sufferer hears only his own voice, and that very loudly. See also
medical specialties.
the technique of communicating through signs made with the fingers, as in the manual alphabet for the deaf.
the condition of lacking both hearing and speech. Also called surdomutism. — deafmute, n.
the teaching of communication through the use of hand signals to the deaf. — manualist, n.
1. the principles of the oral method of training the deaf, as lip reading.
2. the support or practice of these principles. Cf. manualism. — oralist, n.
a hearing device for the deaf that is placed against the upper teeth so it can transmit vibrations to the auditory nerve through the bones of the skull.
defective sense of hearing. Also paracousia.
a procedure for producing visible records of sound waves or speech sounds, especially to assist the deaf in using the telephone. Also called visible speech. — phonautographic, adj.
Pathology. the degree of deafness that is sufficient to block the acquisition of speech by normal means.
deafmutism. — surdomute, n.
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
deafness
The total or partial inability to hear. It can be caused by a variety of factors including diseases such as otosclerosis, blockage of the ear canal by wax, damage to the eardrum, damage to the bones of the middle ear, and damage to nerves that take messages from the ear to the brain.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited