death rate

noun

plural death rates
: the ratio between deaths and individuals in a specified population during a particular time period : the incidence of deaths in a given population during a defined time period (such as one year) that is typically expressed per 1000 or 100,000 individuals : mortality rate
an annual death rate of 15 deaths per 1000 people

Note: A crude death rate does not distinguish between specific causes of death or groups of individuals and measures the incidence of all deaths in a population during a given time period. More specific death rates are based on narrower categories of individuals or causes of death.

an infant death rate of 9 deaths per 1000 live births
Ebola is infamous for being highly contagious and causing death rates as high as 90 percent in some human outbreaks.Brendan Borrell

Examples of death rate in a Sentence

There was a decline in the country's death rate after its health care improved. Lung cancer death rates are up. The death rate from accidents is rising.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Central Asia had the highest death rates, while the high-income Asia Pacific region reported the lowest burden. Theresa Gaffney, STAT, 31 Mar. 2026 Example factors included the cost of a medical visit, premature death rates, access to mental health counselors, fruit and vegetable consumption, fitness and instruction centers per capita, physically active adults, parkland and quality of parks. Joe Edwards, MSNBC Newsweek, 30 Mar. 2026 In Florida, innovative mRNA COVID vaccines helped curb the death rate that had been climbing in late 2020, particularly among the elderly. Cindy Krischer Goodman, Sun Sentinel, 25 Mar. 2026 During Sheriff Marian Brown’s first eight years in office, 71 incarcerated people have died — about a 50% higher death rate than the same period before her administration, state and county data show. Dallas Morning News, 19 Mar. 2026 See All Example Sentences for death rate

Word History

First Known Use

1849, in the meaning defined above

Time Traveler
The first known use of death rate was in 1849

Browse Nearby Words

Cite this Entry

“Death rate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/death%20rate. Accessed 5 Apr. 2026.

Kids Definition

death rate

noun
: the proportion of deaths in a population that is often expressed as the number of individuals that die in a year per thousand individuals in the population at the beginning of the year

Medical Definition

death rate

noun
: the ratio between deaths and individuals in a specified population and time period : the incidence of deaths in a given population during a defined time period (as one year) that is typically expressed per 1000 or 100,000 individuals : mortality rate
an annual death rate of 715 deaths per 100,000 individuals

Note: A crude death rate does not distinguish between specific causes of death or groups of individuals and measures the incidence of all deaths in a population during a given time period. More specific death rates are based on narrower categories of individuals or causes of death.

an infant death rate of 9 deaths per 1000 live births
The pravastatin group had a 24% lower death rate than the placebo group.Harvard Health Letter
Ebola is infamous for being highly contagious and causing death rates as high as 90 percent in some human outbreaks.Brendan Borrell, Scientific American
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