menstrual cycle

Noun
  1. 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 (synset 115313347)
    "the average menstrual cycle is 28 days"
    is a type of: cycle, oscillation - a single complete execution of a periodically repeated phenomenon
    has:
    • fertile period, fertile phase - the time in the menstrual cycle when fertilization is most likely to be possible (7 days before to 7 days after ovulation)
    • menstrual phase - the phase of the menstrual cycle during which the lining of the uterus is shed (the first day of menstrual flow is considered day 1 of the menstrual cycle)
    • luteal phase, secretory phase - the second half of the menstrual cycle after ovulation; the corpus luteum secretes progesterone which prepares the endometrium for the implantation of an embryo; if fertilization does not occur then menstrual flow begins
    • safe period - that time during a woman's menstrual cycle during which conception is least likely to occur (usually immediately before of after menstruation)

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