Synonyms of calendar method of birth control
WordNet 3.0 Copyright © 2006 by Princeton University.
- 1. rhythm method of birth control, rhythm method, rhythm, calendar method of birth control, calendar method, natural family planning
- usage: 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)
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