menstruation
/ˌmɛnstruˈeɪʃən/
noun
- The regular flow of blood and tissue from the lining of the uterus, occurring about once a month in people who are not pregnant.
- Many girls start menstruation between the ages of 10 and 15.
- Menstruation is a normal part of the reproductive cycle.
- She tracks her menstruation using a phone app to predict when it will start.
Synonyms