American English

Definition of mortality noun from the Oxford Advanced American Dictionary



    (pl. mortalities)
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  1. 1[uncountable] the state of being human and not living for ever After her mother's death, she became acutely aware of her own mortality.
  2. 2[uncountable] the number of deaths in a particular situation or period of time the infant mortality rate (= the number of babies that die at or just after birth) Mortality from lung cancer is still increasing.
  3. 3[countable] (technology) a death hospital mortalities (= deaths in hospital)
See the Oxford Advanced Learner's Dictionary entry: mortality