Activity of the effector proteins result in effacement of the brush border, induction of massive membrane ruffles and formation of novel reticular F - actin structures in a highly dynamic manner. (biologie.uni-osnabrueck.de)
Dilation is measured in centimeters and effacement in percentages; after an internal exam, your practitioner will probably give you the measurements. (whattoexpect.com)
The American Pregnancy Association (APA) defines effacement as, «the process by which the cervix prepares for delivery.» (romper.com)