 rhythm_method |
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| 1. | [ 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) | |
| Synonyms: | rhythm calendar_method calendar_method_of_birth_control rhythm_method_of_birth_control | |
| Related terms: | birth_control natural_family_planning | |
