Of or pertaining to courses of study offered for a higher degree, graduate diploma or graduate certificate Eligibility for entry to a postgraduate course normally requires the applicant to have successfully completed an approved undergraduate (first) degree
Postgraduate study or research is done by a student who has a first degree and is studying or doing research at a more advanced level. postgraduate courses Dr Hoffman did his postgraduate work at Leicester University. someone who is studying at a university to get a master's degree or a PhD American Equivalent: graduate student
A student who is studying having already completed (at least) one university degree Often referred to as a Graduate [University]