1. One of two divisions of an academic year
   "She enrolled in five classes for the spring semester"
    
2. Half a year; a period of 6 months
   "She completed three courses during the fall semester"

Derived forms: semesters

Type of: academic session, academic term, period, period of time, school term, session, time period, time span

Part of: academic year, school year

Encyclopedia: Semester