trimester
/ˈtraɪˌmɛstər/
noun
- A period of three months, especially one of the three periods into which a pregnancy is divided.
- She is in her second trimester and feeling much better now.
- The doctor scheduled the ultrasound for the end of the first trimester.
- Morning sickness often fades after the first trimester.
- One of three equal periods into which an academic year is divided at some schools and universities.
- The school switched from semesters to trimesters last year.
- Students take final exams at the end of each trimester.
- He enrolled in a new course for the fall trimester.