trimester
UK /ˈtɹ(a)ɪ.mɛs.tə(ɹ)/ · US /ˈt(ʃ)ɹaɪ.mɛs.təɹ/ noun
Forms trimesters
- noun A period of three months or about three months; (financial): quarter. “She is in the second trimester of her first pregnancy.”
- noun One of the terms of an academic year in those learning institutions that divide their teaching in three roughly equal terms, each about three months long. Compare semester. “The school operates on a trimester schedule.”
Synonyms
Etymology
From French trimestre, from Latin trimestris (“of three months”), from trēs (“three”) + mensis (“month”).
Webster’s 1913
Etymology [L. trimestris of three months; tri- (see Tri-) + mensis month: cf. F. trimestre.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “trimester”, CC BY-SA 4.0. Details