trimester
noun
ˈtrī-ˌme-
Did you know?
Semester, which comes from the Latin words for "six" and "month", has come to mean half an academic year when the year is divided into two segments. When an academic year is divided into three segments, each is called a trimester (which is usually a bit more accurate, since each segment often is close to three months in length). Some colleges operate on the "quarter" system, with the summer being the fourth quarter, but this just means that each quarter is basically a trimester. In a human pregnancy, a trimester is three months long, representing one-third of the nine months that a typical pregnancy lasts.
Examples of trimester in a Sentence
Anna Marie De La Fuente, Variety, 9 June 2025
Cassie Gives Birth to Baby Boy 15 hr 33 min ago
Ventura, who testified for four days while late in her third trimester, gave birth to her third child, a boy, with husband Alex Fine, a source told PEOPLE.
—Elizabeth Rosner, People.com, 28 May 2025
From the final trimester of pregnancy, for example, fetuses are exposed to their mother's voice and scent.
—Daniella Gray, MSNBC Newsweek, 12 May 2025
The pregnant woman, who had been in her second trimester, was found unconscious and not breathing when police arrived at the home, the probable cause said.
—Kate Linderman, Kansas City Star, 5 May 2025
See All Example Sentences for trimester
Cite this Entry
“Trimester.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trimester. Accessed 27 Jun. 2025.
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trimester
noun
ˈtrī-ˌ
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