n00853145
| type | n |
| lex_filenum | 04 |
| def | 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) |
| Outgoing links | |
| Hypernym | natural family planning |
| Incoming links | |
| Hyponym | natural family planning |
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