IPA: /ɪˈfeɪs.mənt/
KK: /ɪˈfeɪs.mənt/
The act of making something less noticeable or less prominent, often used in medical contexts to describe the thinning of the cervix during labor.
The doctor explained that effacement is an important part of the labor process.
Effacement is formed from "ef-" (a variant of "ex-", meaning out or away) and "facere" (meaning to make or do). The word describes the act of making something disappear or removing it, as if it has been made away with.
Think of 'making away' ('facere') with something 'out' ('ef-') — that's why effacement means the act of removing or erasing.