Billings method
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noun
a natural method of birth control that involves examining the colour and viscosity of the cervical mucus to discover when ovulation is occurringAlso called: ovulation method, mucus method
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On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.
Word Origin for Billings method
C20: devised by Drs John and Evelyn Billings in the 1960s
Words nearby Billings method
billing, billing cycle, billing machine, Billings, billingsgate, Billings method, billion, billionaire, Billiton, billman, bill of adventure
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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