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Medical Dictionary

effacement

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noun ef·face·ment \i-ˈfās-mənt, e-\

Medical Definition of effacement

  1. :  the thinning or obliteration of tissue or narrowing of an internal anatomical space <effacement of the spinal subarachnoid space>; especially :  the shortening and thinning of the uterine cervix during labor so that only the external orifice remains <Though far from strong enough to bring your baby into the world, late-third-trimester Braxton Hicks contractions contribute to the effacement and dilation of the cervix …—Arlene Eisenberg et al., Parenting, June/July 1996>

efface

\-ˈfās\play transitive verb

effaced

;

effacing





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