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Definition of: presbycusis
(prez′bi·ky
′sis, pres′-) noun Pathol.
Impairment of hearing due to advancing years or old age. Also pres·by·a·cu·sis (prez′bē·ə-·ky′sis, pres′-). [<NL <Gk. presbys old + akousis hearing]
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