せいり 生理 Common word JLPT N1 LinksSentence search for 生理Sentence search for せいりKanji details for 生 and 理Edit in JMdict Noun1. physiologyNoun2. menstruation; one's periodSee also 月経せいり生理よう用ナプキンはどこにありますか。Where are the sanitary napkins? Discussions Log in to talk about this word.