trimester
noun
tri·mes·ter
| \ (ˌ)trī-ˈme-stər
, ˈtrī-ˌ\
, ˈtrī-ˌ\
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
2
: one of three terms into which the academic year is sometimes divided
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Examples of trimester in a Sentence
development in the first trimester
Recent Examples on the Web
The law would prevent the use of instruments used in dilation and evacuation procedures commonly performed in the second trimester. — Washington Post, "Oklahoma judge upholds law banning common abortion procedure," 12 July 2019 Most losses occur in the first trimester, before the pregnancy is visible, and many women choose to keep their pregnancy — and grief — to themselves. — Melia Russell, SFChronicle.com, "Miscarriage leave, a benefit no one wants to use, on the rise," 12 July 2019 In Brazil, the Supreme Court is currently hearing a case that could decriminalize abortions in the first trimester. — Ryan Dube, WSJ, "Argentina Rejects Bill to Ease Abortion Restrictions," 9 Aug. 2018 For the Canadian study, the researchers gathered urine samples from pregnant women during each trimester and tested their fluoride levels. — Dennis Thompson, chicagotribune.com, "Could fluoride be bad for your baby during pregnancy?," 22 Aug. 2019 About 500 women provided urine samples during each trimester of pregnancy, which the researchers used to measure fluoride levels. — Jamie Ducharme, Time, "Is Fluoride in Drinking Water Safe? A New Study Reignites a Long-Standing Debate," 21 Aug. 2019 The new collaboration includes dresses, pants, blazers, and tops designed to seamlessly transition from the office to an after-work event throughout all three trimesters of pregnancy. — Maggie Maloney, Town & Country, "Two of Meghan Markle's Favorite Brands Just Launched a New Collaboration," 14 Aug. 2019 This past spring, a federal judge struck down a Kentucky law that would halt a common second-trimester procedure to end pregnancies. — Washington Post, "Appeals court panel hears high-stakes Kentucky abortion case," 9 Aug. 2019 In the cold tank, during Fowles’s microbiology trimester, the two had a long talk about communicable diseases and whether a mortician might catch one from a corpse. — Joan Niesen, SI.com, "How Sylvia Fowles Balances Being a Lynx Star and a Second Life Dealing With Death," 8 Aug. 2019These example sentences are selected automatically from various online news sources to reflect current usage of the word 'trimester.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for trimester
trimester
noun
English Language Learners Definition of trimester
: a period of three months
especially
: one of three periods into which a woman's pregnancy is often divided
US
: one of three periods into which an academic year is sometimes divided
See the full definition for trimester in the English Language Learners Dictionary
trimester
noun
tri·mes·ter
| \ (ˈ)trī-ˈmes-tər
, ˈtrī-ˌ
\
, ˈtrī-ˌ
\
Medical Definition of trimester
: 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