
[French trimestre, from Latin trimēstris, trimēnstris, of three months : tri-, tri- + mēnsis, month.]
trimestral tri·mes'tral (-trəl) or tri·mes'tri·al (-trē-əl) adj.[Etymology: tri + Lat: ‘month’] time Any three-month period, usually a subdivision of a greater period that is a multiple of such, particularly the successive parts of the nine-month period of human gestation. Used erroneously for any period that is a third of some year, e.g. with a year-round school scheme having three four-month terms.
One of the three periods of approximately 3 months each into which pregnancy is divided.

Dansk (Danish)
n. - tremånedersperiode
Nederlands (Dutch)
(school)trimester, trimester
Français (French)
n. - trimestre
Deutsch (German)
n. - Trimester
Ελληνική (Greek)
n. - τρίμηνο, τριμηνία
Português (Portuguese)
n. - trimestre (m)
Español (Spanish)
n. - trimestre
Svenska (Swedish)
n. - tremånadersperiod (spec. under graviditet)
中文(简体)(Chinese (Simplified))
三个月, 学期
中文(繁體)(Chinese (Traditional))
n. - 三個月, 學期
한국어 (Korean)
n. - 3개월 간, (3학기 제의) 1학기
العربيه (Arabic)
(الاسم) فترة ثلاثه أشهر, ألفصل
עברית (Hebrew)
n. - שליש שנת-לימודים באוניברסיטה, שליש תקופת הריון, רבע שנה, טרימסטר
If you are unable to view some languages clearly, click here.