Look up Trimester, trimester, or trimestre in Wiktionary, the free dictionary.

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.

• The trimester framework in Roe v. Wade
• Semester
• Term (disambiguation)

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