Definition that contains menstrual cycle
- menopause the time in a woman's life in which the menstrual cycle ends
- ovulation the expulsion of an ovum from the ovary (usually midway in the menstrual cycle)
- natural family planning any of several methods of family planning that do not involve sterilization or contraceptive devices or drugs; coitus is avoided during the fertile time of a woman's menstrual cycle
- safe period that time during a woman's menstrual cycle during which conception is least likely to occur (usually immediately before of after menstruation)
- basal body temperature method of family planning natural family planning in which the fertile period of the woman's menstrual cycle is inferred by noting the rise in basal body temperature that typically occurs with ovulation
- luteal 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
- 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
- change of life the time in a woman's life in which the menstrual cycle ends
- 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)
- superfecundation fertilization of two or more ova released during the same menstrual cycle by sperm from separate acts of coitus (especially by different males)