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trimester

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noun tri·mes·ter \(ˌ)trī-ˈmes-tər, ˈtrī-ˌ\

Simple Definition of trimester

  • : a period of three months; especially : one of three periods into which a woman's pregnancy is often divided

  • : one of three periods into which an academic year is sometimes divided

Source: Merriam-Webster's Learner's Dictionary

Full Definition of trimester

  1. 1 :  a period of three or about three months; especially :  any of three periods of approximately three months each into which a human pregnancy is divided

  2. 2 :  one of three terms into which the academic year is sometimes divided

Examples of trimester in a sentence

  1. development in the first trimester



Origin and Etymology of trimester

French trimestre, from Latin trimestris of three months, from tri- + mensis month — more at moon


First Known Use: 1821


Medical Dictionary

trimester

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noun tri·mes·ter \(ˈ)trī-ˈmes-tər, ˈtrī-ˌ\

Medical Definition of trimester

  1. :  a period of three or about three months; especially :  any of three periods of approximately three months each into which a human pregnancy is divided




Learn More about trimester

  1. Medical Dictionary: Definition of trimester


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