death rate

(redirected from lethality rate)
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death rate

see POPULATION.

death rate

the number of people in a POPULATION who die per thousand per year. In 2004, for example, the UK death rate was 10 people per 1,000 of the population. The difference between this rate and the BIRTH RATE is used to calculate the rate of growth of the population of a country over time. The death rate tends to decline as a country attains higher levels of economic development. See DEMOGRAPHIC TRANSITION.