| Billings method | |
| —n | |
| ovulation method, Also called: mucus method a natural method of birth control that involves examining the colour and viscosity of the cervical mucus to discover when ovulation is occurring | |
| [C20: devised by Drs John and Evelyn Billings in the 1960s] | |
| Main Entry: | Billings method |
| Part of Speech: | n |
| Definition: | a medical system for determining the time of ovulation based on cervical mucus, esp. as a form of birth control or for conception |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |