presbycusis

[pres″be-ku´sis] progressive, bilaterally symmetrical perceptive hearing loss occurring with age; it usually occurs after age 50 and is caused by structural changes in the organs of hearing. Initially, changes in the inner ear, such as degeneration of hair cells and changes in the basilar membrane, lead to decreased hearing at higher tones and a decline in pitch discrimination. As hearing continues to be lost, even lower pitch tones become harder to hear.

pres·by·a·cu·sis

, presbyacusia (prez'bē-ă-kū'sis, -kū'sē-ă), Loss of hearing associated with aging; manifest as reduced ability to perceive or discriminate sounds; the pattern and age of onset vary. See: phonemic regression. Synonym(s): presbyacousia, presbycusis [presby- + G. akousis, hearing]

presbycusis

Age-related hearing loss Audiology A progressive loss of hearing 2º to age-related changes in the inner or middle ear, beginning with high-frequency sounds–eg, speech, which may have a genetic predisposition, as it tends to occur in families; it occurs ±25% > age 65 to 75 yrs old, 50% > age 75. See Hearing loss.

pres·by·cu·sis

(prez'bē-kyū'sis) A usually gradual, frequently bilateral sensorineural or conductive hearing loss often related to the middle ear that gradually occurs in most people as they age; usually more pronounced for high-pitched sounds; the pattern and age of onset may vary.
Synonym(s): presbyacusis, presbyacusia. [G. presbys, old man, + akousis, hearing]

单词	presbycusis
释义	presbycusis presbycusis Deafness in elderly people caused by deterioration of tiny hair cells in the cochlea. Translations presbiacusia presbycusis presbycusis [‚prez·bə′kyü·səs] (medicine) A condition of diminished auditory acuity associated with old age. presbycusis presbycusis [pres″be-ku´sis] progressive, bilaterally symmetrical perceptive hearing loss occurring with age; it usually occurs after age 50 and is caused by structural changes in the organs of hearing. Initially, changes in the inner ear, such as degeneration of hair cells and changes in the basilar membrane, lead to decreased hearing at higher tones and a decline in pitch discrimination. As hearing continues to be lost, even lower pitch tones become harder to hear. pres·by·a·cu·sis , presbyacusia (prez'bē-ă-kū'sis, -kū'sē-ă), Loss of hearing associated with aging; manifest as reduced ability to perceive or discriminate sounds; the pattern and age of onset vary. See: phonemic regression. Synonym(s): presbyacousia, presbycusis [presby- + G. akousis, hearing] presbycusis Age-related hearing loss Audiology A progressive loss of hearing 2º to age-related changes in the inner or middle ear, beginning with high-frequency sounds–eg, speech, which may have a genetic predisposition, as it tends to occur in families; it occurs ±25% > age 65 to 75 yrs old, 50% > age 75. See Hearing loss. pres·by·cu·sis (prez'bē-kyū'sis) A usually gradual, frequently bilateral sensorineural or conductive hearing loss often related to the middle ear that gradually occurs in most people as they age; usually more pronounced for high-pitched sounds; the pattern and age of onset may vary. Synonym(s): presbyacusis, presbyacusia. [G. presbys, old man, + akousis, hearing] pres·by·cu·sis (prez'bē-kyū'sis) A usually gradual, frequently bilateral sensorineural or conductive hearing loss often related to the middle ear that gradually occurs in most people as they age; usually more pronounced for high-pitched sounds. [G. presbys, old man, + akousis, hearing]
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