Method, rhythm
Also known as fertility awareness, natural family planning, and periodic abstinence, this approach to contraception entails not having sexual intercourse on the days of a woman's menstrual cycle when she could become pregnant or using a barrier method (such as a condom, the diaphragm or a cervical cap) for birth control on those days. Because a sperm may live in the female's reproductive tract for up to 7 days and the egg remains fertile for about 24 hours, a woman can get pregnant within a substantial window of time — from 7 days before ovulation to 3 days after. Methods to approximate when a woman is fertile are usually based on the menstrual cycle, changes in cervical mucus, or changes in body temperature.

Medical dictionary. 2011.

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  • rhythm method of birth control — noun 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) • Syn: ↑rhythm method, ↑rhythm, ↑calendar method of… …   Useful english dictionary

  • Rhythm (disambiguation) — Rhythm is the variation of the length and accentuation of a series of sounds or other events.The word can also refer to: * Rhythm (film), a popular Tamil film * A song by Sum 41, from their album All Killer No Filler * Rhythm (horse), a… …   Wikipedia

  • rhythm method — rhythm .method n [singular] a method of ↑birth control which depends on having sex only at a time when the woman is not likely to become ↑pregnant …   Dictionary of contemporary English

  • rhythm method — rhythm ,method noun uncount a method of BIRTH CONTROL that involves a man and a woman not having sex during the time of the month when the woman is likely to become pregnant …   Usage of the words and phrases in modern English

  • rhythm method — n. a method of seeking birth control by abstaining from sexual intercourse during the woman s probable monthly ovulation period …   English World dictionary

  • rhythm — (n.) 1550s, from L. rhythmus movement in time, from Gk. rhythmos measured flow or movement, rhythm, related to rhein to flow, from PIE root *sreu to flow (see RHEUM (Cf. rheum)). In Medieval Latin, rithmus was used for accentual, as opposed to… …   Etymology dictionary

  • rhythm method — rhythm′ meth od n. pha a method of birth control by abstaining from sexual intercourse when ovulation is most likely to occur • Etymology: 1935–40 …   From formal English to slang

  • rhythm method — noun 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) (Freq. 1) • Syn: ↑rhythm method of birth control,… …   Useful english dictionary

  • method — n. 1) to apply, employ, use a method 2) to adopt a method 3) to give up, scrap a method 4) an antiquated, obsolete; crude; infallible, sure; modern, up to date; refined, sophisticated; sound; unorthodox method 5) the case; deductive; inductive;… …   Combinatory dictionary

  • Rhythm — For other uses, see Rhythm (disambiguation). Rhythm, a sequence in time repeated, featured in dance: an early moving picture demonstrates the waltz …   Wikipedia

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