Kyūjitai form of 生理学 (physiology)

specialist; expert

Short for 生理学 (seirigaku, “physiology”). / menstruation; period

speciality/specialty; subject of study; subject of expertise; area of interest; profession

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

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

a house / one's own home / a home, household / a family

menstrual pain, menstrual cramps

expert, special