mortality rate

[ mawr-tal-i-tee reyt ]
/ mɔrˈtæl ɪ ti ˌreɪt /
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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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The rainy weather could not ________ my elated spirits on my graduation day.
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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 in 1860–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use mortality rate in a sentence

British Dictionary definitions for mortality rate

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

mortality rate

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