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mortality

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mor⋅tal⋅i⋅ty

[mawr-tal-i-tee]
–noun, plural -ties.
1. the state or condition of being subject to death; mortal character, nature, or existence.
2. the relative frequency of deaths in a specific population; death rate.
3. mortal beings collectively; humanity.
4. death or destruction on a large scale, as from war, plague, or famine.
5. Obsolete. death.

Origin:
1300–50; ME mortalite < MF < L mortālitās. See mortal, -ity
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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mor·tal·i·ty   (môr-tāl'ĭ-tē)   
n.   pl. mor·tal·i·ties
  1. The quality or condition of being mortal.

  2. Mortals considered as a group; the human race.

  3. Death, especially of large numbers; heavy loss of life: the mortality wrought by an epidemic.

  4. Death rate.

  5. The rate of failure or loss: the high mortality among family-run farms.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: mor·tal·i·ty
Pronunciation: mor-'tal-&t-E
Function: noun
Inflected Form: plural -ties
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
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

mortality mor·tal·i·ty (môr-tāl'ĭ-tē)
n.

  1. The quality or condition of being mortal.

  2. Death rate.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia

mortality

in demographic usage, the frequency of death in a population

Learn more about mortality with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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