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

Neither group showed higher-than-normal death rates from cancers that aren’t tied to radiation exposure, noted the commentary writers, Catherine Olsen and Ken Karipidis. — CNN Money, 19 Aug. 2026

Colorectal cancer is now the leading cause of cancer death in people under 50, even as overall cancer death rates in that age group have dropped 44% since 1990. — Hanna Wickes, Kansas City Star, 19 Aug. 2026

France has endured record-breaking successions of heatwaves this summer, which have led to massive wildfires and a spike in the normal death rate, according to French public health services. — Devorah Lauter, ARTnews.com, 19 Aug. 2026

Neither group showed higher-than-normal death rates from cancers that aren't tied to radiation exposure, noted the commentary writers, Catherine Olsen and Ken Karipidis. — ABC News, 18 Aug. 2026

Word History

First Known Use

1849, in the meaning defined above

Rhymes for death rate

• abate
• airfreight
• await
• baseplate
• berate
• birthdate
• birthrate
• bookplate
• borate
• breastplate
• bromate
• casemate

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