mortality

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mor·tal·i·ty / môrˈtalətē/ • n. (pl. -ties) 1. the state of being subject to death: the work is increasingly haunted by thoughts of mortality.2. death, esp. on a large scale: the causes of mortality among infants and young children. ∎  (also mortality rate) the number of deaths in a given area or period, or from a particular cause: postoperative mortality was 90 percent for some operations.

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