Medical Definition of Mortality rate
Mortality rate: A death rate. There are a number of different types of mortality rates as, for examples, the following:
The word "mortality" came from the Latin "mors" (death). Mortality is distinct from morbidity (illness). A condition such as tuberculosis can cause morbidity and mortality (disease and death). The Morbidity and Mortality Weekly Report (MMWR) is an important weekly publication by the US Centers for Disease Control and Prevention (the CDC).
Last Editorial Review: 5/13/2016
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