| 释义 | rhythm method of birth controlThesaurus
 | Noun | 1. |  rhythm method of birth control - 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)calendar method, calendar method of birth control, rhythm method, rhythmnatural 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 | 
 EncyclopediaSeemethod
 rhythm method of birth control
 rhythm method of birth controlA method preventing pregnancy that uses abstinence from sexual relations around the time of ovulation. See: contraceptionLegalSeeMethodrhythm method of birth controlRelated to rhythm method of birth control: calendar method
 Synonyms for rhythm method of birth controlnoun 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)Synonymscalendar methodcalendar method of birth controlrhythm methodrhythm
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