Menstrual cycle and Menorrhea

Menstrual cycle noun - A recurring cycle (beginning at menarche and ending at menopause) in which the endometrial lining of the uterus prepares for pregnancy; if pregnancy does not occur the lining is shed at menstruation.

Menorrhea and menstrual cycle are semantically related. In some cases you can use "Menorrhea" instead a noun phrase "Menstrual cycle".

Menorrhea noun - Flow of blood from the uterus; occurs at roughly monthly intervals during a woman's reproductive years.

Menstrual cycle and menorrhea are semantically related. You can use "Menstrual cycle" instead a noun "Menorrhea".