Trimester or Trimestre may refer to:

  • Academic term, a trimester system divides the academic year into three terms
  • Trimester (pregnancy) in humans, where the time of pregnancy is divided into three terms of 13 weeks to refer to the fetus's development
  • A period of three months (Latin tri +mensis=month or moon) In Europe, where financial years start on 1 January each year, often Jan+Feb+Mar etc.

See also

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