Medical Definition of Menstruation, anovular
Menstruation, anovular: Menstruation that occurs without ovulation. Usually in anovular menstruation the egg that remains in the ovary simply disintegrates, but in some circumstances it is fertilized and a life-threatening ovarian pregnancy results.
Last Editorial Review: 7/1/2016
Back to MedTerms online medical dictionary A-Z List
Need help identifying pills and medications?