n. A person continuing to study in a field after having successfully completed a degree course.
adj. Those studies which take place after having successfully completed a degree course.
the GNU version of the Collaborative International Dictionary of English
adj. Of, pertaining to, or designating, the studies pursued after graduation, esp., after receiving the bachelor's degree at a college; graduate.
The Century Dictionary and Cyclopedia
Belonging or relating to or prosecuting a course of study pursued after graduation: as, postgraduate lectures; a postgraduate course of study; a postgraduate student.
n. A graduate; one studying after graduation.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. of or relating to studies beyond a bachelor's degree
n. a student who continues studies after graduation
Word Usage
"Because postgraduate is so often used interchangeably with graduate, it would be unrealistic to insist that the two must be different and that postgraduate means what you and I think it does (what it should!)."