Medical Dictionary

mortality

noun mor·tal·i·ty \mr-ˈtal-ət-ē\
plural mor·tal·i·ties

Medical Definition of MORTALITY

1
:  the quality or state of being mortal
2
a :  the number of deaths in a given time or place b :  the proportion of deaths to population :  death rate—called also mortality rate; compare fertility 2, morbidity 2

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