[ mawr-tal-i-tee reyt ]
/ mɔrˈtæl ɪ ti ˌreɪt /
the relative frequency of deaths in a specific population during a specified time, often cited as the percentage of human deaths during a public health crisis, or of wildlife deaths due to environmental perils: Patients over the age of 80 had the highest mortality rate during the last flu season. The mortality rate of the bald eagle falls to about 25 percent after the first year of life.
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Also called death rate [deth-reyt], /ˈdɛθ ˌreɪt/, fa·tal·i·ty rate [fey-tal-i-tee reyt, fuh-] /feɪˈtæl ɪ ti ˌreɪt, fə-/ .
Origin of mortality rate
First recorded in1860–65
Words nearby mortality rate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for mortality rate
Some of those circumstances which affect epidemic force, so as to increase the mortality-rate, are appreciable.
Of this number, 3370 died, being a mortality-rate of 23.91 per cent.
British Dictionary definitions for mortality rate
another term for death rate
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for mortality rate
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.