| hearing impairment | Hearing loss A reduction in the ability to perceive sound; may range from slight to complete deafness. See: deafness, threshold shift. (05 Mar 2000) |
|---|---|
| mental impairment | A disorder characterised by the display of an intellectual defect, as manifested by diminished cognitive, interpersonal, social, and vocational effectiveness and quantitatively evaluated by psychological examination and assessment. (05 Mar 2000) |
| physician impairment | The physician's inability to practice medicine with reasonable skill and safety to the patient due to the physician's disability. Common causes include alcohol and drug abuse, mental illness, physical disability, and senility. (12 Dec 1998) |
| professional impairment | The inability of a health professional to provide proper professional care of patients due to his or her physical and/or mental disability. (12 Dec 1998) |
| hepatic function impairment | The impaired ability of the liver to fulfill its role in metabolism. (27 Sep 1997) |
| impairment | A physical or mental defect at the level of a body system or organ. The official WHO definition is: any loss or abnormality of psychological, physiological or anatomical structure or function. (05 Mar 2000) |
| american speech-language-hearing association | A professional society concerned with the diagnosis, prevention, treatment, and remediation of speech, language, and hearing disorders. (12 Dec 1998) |
| rehabilitation of hearing impaired | Procedures for assisting a person with a hearing disorder to maximum comprehension in communication. (12 Dec 1998) |
| resonance theory of hearing | That the basilar membrane of the cochlea acts as a resonating structure, recording low tones from its apical turns and high tones from its basal turns. Synonym: Helmholtz theory of hearing. (05 Mar 2000) |
| Weber's test for hearing | The application of a vibrating tuning fork to one of several points in the midline of the head or face, to ascertain in which ear the sound is heard best by bone conduction, that ear being the affected one if the sound-conducting apparatus (middle ear) is at fault (positive test), but probably the normal one if the neurosensory apparatus is diseased (negative test). (05 Mar 2000) |
| conductive hearing loss | <otolaryngology> A form of deafness that results from a blockage of the ear canal or dysfunction of the ossicles or eardrum (sound collecting apparatus). In conductive hearing loss the auditory nerve is normal, but there exists a physical problem with the sound collecting apparatus. (05 Jan 1998) |
| hearing | The sensation of sound. (12 Dec 1998) |
| hearing aid | An electronic amplifying device designed to bring sound more effectively into the ear; it consists of a microphone, amplifier, and receiver. (05 Mar 2000) |
| hearing aids | Devices which amplify sound to help persons with hearing loss. (12 Dec 1998) |
| hearing impaired persons | Persons with any degree of loss of hearing that has an impact on their activities of daily living or that requires special assistance or intervention. (12 Dec 1998) |