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Definition of Infant mortality rate
1. Noun. The death rate during the first year of life.
Exact synonyms: Infant Deathrate, Infant Mortality
Generic synonyms: Death Rate, Deathrate, Fatality Rate, Mortality, Mortality Rate
Generic synonyms: Death Rate, Deathrate, Fatality Rate, Mortality, Mortality Rate
Medical Definition of Infant mortality rate
1. The number of children dying under a year of age divided by the number of live births that year. The infant mortality rate in the united states, which was 12.5 per 1,000 live births in 1980, fell to 9.2 per 1,000 live births in 1990. (12 Dec 1998)