박사과정이 · 박사과정을
doctoral program, PhD course
Example
그는 미국에서 박사과정을 밟고 있어요.
He is pursuing a doctoral program in the US.
Word parts
박 broad+사 scholar+과 course+정 path
Literally 'broad scholar course'.
Good to know
Use the collocation 박사과정을 밟다 (to pursue a doctoral program); a PhD student is 박사과정생.