trimester

A period or term of three months.

One of three terms into which an academic year is divided in some universities and colleges.

A term or period of three months.

A term or period of three months.

A period of three months or about three months.

One of the terms of an academic year in those learning institutions that divide their teaching in three roughly equal terms, each about three months long. Compare semester.

one of three divisions of an academic year

a period of three months; especially one of the three three-month periods into which human pregnancy is divided