trimester

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a period of three months;
especially one of the three three-month periods into which human pregnancy is divided
• Hypernyms:
time period, period of time, period
• Hyponyms:
first trimester, second trimester, third trimester
• Part Holonyms:
gestation, gestation period
2. one of three divisions of an academic year
• Hypernyms:
school term, academic term, academic session, session
• Part Holonyms:
school year, academic year