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.
The study found people in the highest bracket of wealth had a 40% lower death rate, or higher life expectancy, than those in the lowest wealth bracket, researchers said. Irene Wright, Miami Herald, 3 Apr. 2025 This investment has led to advances in cancer treatment and prevention that helped reduce the overall U.S. cancer death rate by 33% from 1991 to 2021. Deborah Fuller, The Conversation, 28 Mar. 2025 But perhaps more importantly, the AHA has used those resources to invest $6 billion in health research since 1949, more than any U.S. organization except the federal government, while helping to cut death rates from cardiovascular diseases in half. Ian Thomas, CNBC, 24 Feb. 2025 The problem started with the pandemic; although road traffic dried up, the death rate leapt by 20 percent. Jonathan M. Gitlin, ArsTechnica, 9 Apr. 2025 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

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Cite this Entry

“Death rate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/death%20rate. Accessed 28 Apr. 2025.

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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