trimester

views updated May 23 2018

tri·mes·ter / trīˈmestər; ˈtrīˌmes-/ • n. a period of three months, esp. as a division of the duration of pregnancy. ∎  each of the three terms in an academic year.DERIVATIVES: tri·mes·tral / trīˈmestrəl/ adj.tri·mes·tri·al / trīˈmestrēəl/ adj.

trimester

views updated Jun 11 2018

trimester (try-mest-er) n. (in obstetrics) any one of the three successive three-month periods into which a pregnancy may be divided.

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