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trimester

trimester

3 3.6
A three-month part of the school year
  • noun
  • /traɪˈmɛstər/
translation icon : trimestre
  • Students in seventh- and eighth-grade English classes assembled portfolios at the conclusion of each of the three trimesters.
  • the third trimester
  • the second trimester
  • the first trimester

Examples

  • At the end of each trimester, students review their grades and plan for the next period.

  • By the end of the fall trimester, I knew, to one degree or another, every student.

    Academic text (2005)
  • We're only in the first trimester.

  • And so, what about funding for drama next trimester?

  • There's still a week left until the trimester is over.

  • I was heading into my second trimester, and my very grown-up life was only months away.

    Blog text (11)
  • Students track their progress on their own card and pace themselves with a goal of four books each trimester to reach the twelve books by June.

    Academic text (2014)
  • Students refine the learned skills from the first trimester in social studies during the second trimester in science and the third trimester in ELA.

    Academic text (2014)
  • Our grading periods were trimesters, which meant I had to put together grades after observing students in 12 sessions.

    Academic text (2012)
  • We have a big exam scheduled for the last week of this trimester.

Compounds

first trimester
  • Specialized
14 3.1

The first three months of pregnancy when the baby starts to grow

third trimester
  • Specialized
11 3.5

A period of pregnancy from week 28 until the baby is born

second trimester
  • Specialized
8 3.1

A period of pregnancy from week 13 to week 27

How Long

academic year
11 2.3
semester
283 1.5
trimester
3 3.6
quarter
1.3

Surface Forms

trimester singular
trimesters plural

Morphology

trimester = semester (transparent) = tri + mester

Formed from the prefix 'tri-' (three) applied to the '-mester' element (as in 'semester'/'-mester' meaning a month/term); the 'three-month/three-term' sense for academic division is directly inferable.

Etymology

Trimester comes from the Latin parts tri- 'three' and mensis 'month'. So it literally means 'three months', which is why some schools divide the year into three trimesters.