See Also: trimester(medicine)
Trimester(health)
trimester(dictionary)
trimester(dictionary)
pregnancy trimester, first(medicine)
pregnancy trimester, second(medicine)
pregnancy trimester, third(medicine)

trimester (iou)



trimester noun. E19.
[French trimestre, from Latin trimestris, formed as TRI- + mensis month. Cf. SEMESTER.]
A period or term of three months; spec. (a) Medicine one third of the length of a human pregnancy; (b) N. Amer. a three-month university or school term.