SINCE 1828
presbycusis
noun
pres·by·cu·sis
| \ ˌprez-bi-ˈkyü-səs, ˌpres-
\
\
plural presbycuses\ -ˌsēz
\
\
Medical Definition of presbycusis
: a lessening of hearing acuteness resulting from degenerative changes in the ear that occur especially in old age
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