English to English

noun (n)

• 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)

  alami keluarga perencanaan di mana ovulation adalah diasumsikan berlaku 14 hari sebelum timbulnya dari periode (yang subur periode akan diganti untuk memperpanjang dari 10 hari melalui hari 18 darinya kitaran)

  Synonym:
  calendar method, calendar method of birth control, rhythm, rhythm method of birth control
  

  source: wordnet30