mortality

noun mor·tal·i·ty \ mȯr-ˈta-lə-tē \
Updated on: 9 Nov 2017

Definition of mortality

1 :the quality or state of being mortal
  • Her husband's death reminded her of her own mortality.
2 :the death of large numbers (as of people or animals)
  • trying to reduce infant mortality
3 archaic :death
4 :the human race
  • that natural extinction to which all mortality is subject
  • —Thomas Paine
5 a :the number of deaths in a given time or place
  • The mortality among the infected mounted daily.
b :the proportion of deaths to population
  • a brain infection with a mortality rate of about 30 percent
  • —Jane E. Brody
c :the number lost or the rate of loss or failure
  • the mortality rate of small businesses

Examples of mortality in a Sentence

  1. a leading cause of mortality

Recent Examples of mortality from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mortality.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Thoughts On mortality

Young people tend to assume they will never die, but a person's sense of his or her mortality generally increases year by year, and often increases greatly after a serious accident or illness. Still, many people refuse to change behaviors that would improve their chances of living into old age. Mortality rates are calculated by government agencies, insurance companies, and medical researchers. Infant mortality rates (the rate at which infants die in childbirth) provide a good indicator of a country's overall health; in recent years, the rates in countries like Iceland, Singapore, and Japan have been much better than in the U.S.

First Known Use of mortality

15th century



MORTALITY Defined for English Language Learners

mortality

noun

Definition of mortality for English Language Learners

  • : the quality or state of being a person or thing that is alive and therefore certain to die : the quality or state of being mortal

  • : the death of a person, animal, etc.

  • : the number of deaths that occur in a particular time or place


Medical Dictionary

mortality

noun mor·tal·i·ty \ mȯr-ˈtal-ət-ē \

medical Definition of mortality

plural mortalities
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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