What does 生理 mean?
生理 is a Japanese noun meaning “physiology, menses” in English. It can also be translated as “menstruation” depending on context. It is written as 生理 in kanji, せいり in hiragana, and seiri in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
生理用ナプキンはどこにありますか。
Where are the sanitary napkins?