noun see: six Date: 1827 either of the two usually 18-week periods of instruction into which an academic year is often divided, a period of six months, semestral or semestrial adjective
semester hour noun Date: 1922 a unit of academic credit representing an hour of class (as lecture class) or three hours of laboratory work each week for an academic semester
Semester n -s, = семестр, полугодие Studenten der höheren Semester - студенты старших курсов а er ist schon ein altes [älteres, hones, höheres] Semester разг. шутл. - он уже в годах, он уже не первой молодости