Dictionary
se•mes•ter
Pronunciation: (si-mes'tur), [key]—
n.
1. (in many educational institutions) a division constituting half of the regular academic year, lasting typically from 15 to 18 weeks.
2. (in German universities) a session, lasting about six months and including periods of recess.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.