Meaning & use

trimester

noun·Academic

A period of about three months, especially one of three divisions of pregnancy or an academic year.

See it in a sentence

Doctors monitor different developments in each trimester of a pregnancy.

The university divides its academic year into three trimesters instead of two semesters.

A note on using this word

Trimester systems divide the year into three roughly equal terms, unlike semester systems, which use two.

Words with a similar meaning

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