trimester
🇺🇸
/traɪˈmestər/
🇬🇧
/traɪˈmestə(r)/
A trimester is a three-month period, usually used to describe the stages of pregnancy.
She completed all her prenatal checkups during the first trimester.
A trimester is also one of the three periods into which an academic year is divided.
The students are preparing for their exams at the end of the trimester.