ˌprezbəˈkyüsə̇s, -esb- noun
or pres·by·a·cu·sia -bēəˈkyüzh(ē)ə ; also pres·by·a·cou·sia -küzh-
( plural presbycu·ses -üˌsēz ; or presbyacusias also presbyacousias )
Etymology: presbycusis from presby- + -cusis (from Greek akousis hearing); presbyacusia, presbyacousia from New Latin, from presby- + -acousia — more at -acousia
: a condition of hearing less acutely that occurs in old age