trimester

US /traɪˈmes.tɚ/
UK /traɪˈmes.tɚ/
"trimester" picture
1.

a period of three months, especially as a division of the duration of pregnancy

:
•
She is in her second trimester of pregnancy.
•
The first trimester is often the most challenging due to morning sickness.
:
quarterthree-month period
2.

a division of an academic year, typically a third of the year

:
•
The university operates on a trimester system.
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Students typically take three courses per trimester.
:
quarterterm