menstruation

Definition / meaning of menstruation

Periodic discharge of blood and tissue from the uterus. From puberty until menopause, menstruation occurs about every 28 days when a woman is not pregnant.

Listed under:

Find More About 'menstruation'

Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

Leave a Comment

*

This site uses Akismet to reduce spam. Learn how your comment data is processed.