[1] : The Collaborative International Dictionary of English v.0.48

effacement \efface"ment\, n. cf. f. effacement.
   the act if effacing; also, the result of the act.
   1913 webster

[2] : WordNet (r) 2.0

effacement
     n 1: shortening of the uterine cervix and thinning of its walls
          as it is dilated during labor
     2: withdrawing into the background; making yourself
        inconspicuous syn: self-effacement
see also:
self-effacement 

Effacement >> E Words
Effacement, definition of term: Effacement
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