rhythm method

noun

1. a method of birth control in which the couple abstain from sexual intercourse during the period when ovulation is most likely to occur.

noun

1. 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 occurSee also safe period

n.

1. A birth control method dependent on abstinence during the period of ovulation.