presbyacusis pres·by·a·cu·sis (prěz'bē-ə-ky&oomacr;'sĭs, prěs'-) or pres·by·a·cu·si·a (-zē-ə, -zhə)
n.
Hearing loss occurring as part of the aging process. Also called presbycusis.
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
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