menstruation

Từ điển Oxford Advanced Learner 8th

men·stru·ation [menstruation menstruations] BrE [ˌmenstruˈeɪʃn] NAmE [ˌmenstruˈeɪʃn] noun uncountable (formal)
the process or time of menstruating
compare ↑period

• Từ đồng nghĩa / Synonyms:
  menses, menstruum, catamenia, period, flow