postgraduate (postgraduates plural ), post-graduate
1 n-count A postgraduate or a postgraduate student is a student with a first degree from a university who is studying or doing research at a more advanced level.
(BRIT)
in AM, use graduate student
2 adj 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.
(BRIT) ADJ n
...postgraduate courses..., Dr Hoffman did his postgraduate work at Leicester University.
in AM, use graduate