Short for 理学博士.

academic degree

physics (as an area of study)

to instruct, to teach

professor / instruction, teaching

physics, the physical aspects of a phenomenon or a system

Alternative spelling of 只働き

Alternative spelling of 只働き

to work at a job, to labour / to work properly, to operate, to function; to carry out one's function, to be effective, to come into play / to perpetrate or commit a crime

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend