Effaced imp. & p. p. : of Efface

Example:
How Effaced does your cervix have to be to start dialating?

Taxonomy
Effacement, cervix, free encyclopedia, mucus plug, search, been suggested that this article, Unsourced, shortening, tissue, early labour, bottleneck, centimeters, passes, passage, uterus, uterine wall, percentages, from zero.

Defination from the web:
effacement, the cervix is like a long bottleneck, usually about four centimeters in length. ... As effacement takes place, the cervix then shortens, or effaces, pulling up into the uterus and becoming part of the lower uterine wall. ...