rhythm method

About 0.15 uses per million words.

Meaning

1. noun A method of natural birth control that involves counting the days of a woman's menstrual cycle in order to determine when sexual intercourse is most or least likely to result in a pregnancy.

Similar words

calendar method rhythm calendar method of birth control rhythm method of birth control rhythmometry isorhythm rhythmometer rhythmization vatican roulette rhythmography

Word family

rhythm methods