trimestrer
Trimestrer is a term used to denote a period of three months, typically divided into three equal parts. The standard English form is trimester; trimestrer appears as an alternate spelling in some languages or as a nonstandard variant. The concept applies in pregnancy, education, and other contexts requiring three-month segments.
In obstetrics, pregnancy is commonly divided into three trimesters. The first trimester covers roughly weeks 1–12,
In education, a trimester system divides the academic year into three terms, each typically spanning about
Outside medicine and schooling, the term can denote any three-month segment within a calendar or fiscal year,
Derived from Latin tri- 'three' and mensis 'month,' the common English spelling is trimester; trimestrer is rare