se‧mes‧ter /səˈmestə, sɪˈmestə $ -ər/ noun [countable]
[Date: 1800-1900; Language: German; Origin: Latin semestris 'half-yearly', from sex 'six' + mensis 'month']
one of the two periods of time that a year at high schools and universities is divided into, especially in the US:
the fall semester
⇒ term¹(5), quarter¹(8)

[TahlilGaran] Dictionary of Contemporary English ▲