Meaning of “trimester” in the English Dictionary

british dictionary

"trimester" in British English

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trimesternoun [ C ]

uk /trɪˈmes.tər/ /traɪˈmes.tər/ us /traɪˈmes.tɚ/ /ˈtraɪ.mes.tɚ/

a three-month period

any of the three three-month periods that a human pregnancy is divided into:

The second trimester is generally the easiest part of a pregnancy.

US any of the three-month periods into which the school or college year is sometimes divided:

Many students arrange internships or work-study placements during the second trimester.
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(Definition of “trimester” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"trimester" in American English

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trimesternoun [ C ]

us /trɑɪˈmes·tər/

A trimester is any of the three, three-month periods that a human pregnancy is divided into.

A trimester is also any of the three periods into which the school or college year is sometimes divided.

(Definition of “trimester” from the Cambridge Academic Content Dictionary © Cambridge University Press)