rhythm method(redirected from Vatican Roulette)
Also found in: Thesaurus, Medical, Idioms.
A birth-control method characterized by abstinence from sexual intercourse during the period of ovulation.
(Gynaecology & Obstetrics) a method of controlling conception without the aid of a contraceptive device, by restricting sexual intercourse to those days in a woman's menstrual cycle on which conception is considered least likely to occur. See also safe period
a method of birth control by abstaining from sexual intercourse when ovulation is most likely to occur.
Switch to new thesaurus
|Noun||1.||rhythm method - natural family planning in which ovulation is assumed to occur 14 days before the onset of a period (the fertile period would be assumed to extend from day 10 through day 18 of her 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