| 单词 | mucus method |
| 释义 | mucus method in British English (ˈmjuːkəs ˈmɛθəd) noun another name for Billings method Billings method in British Englishnoun a natural method of birth control that involves examining the colour and viscosity of the cervical mucus to discover when ovulation is occurring Also called: ovulation method, mucus method Word origin C20: devised by Drs John and Evelyn Billings in the 1960s |
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