regular student; full-time student
Refers to a student enrolled in a regular degree program (undergraduate or graduate), as opposed to a non-degree, auditing, or special student.
He enrolled at the university as a regular student.
The courses that regular students and auditing students can take are different.
A research student, often a non-degree status; 正規生 implies full degree-seeking enrollment.
non-regular student; exchange or research student
Compound of 正規 (regular, formal) and 生 (student).