effacement
抹消;抹殺;削除
ef·face·ment /ɪˈfesmənt, ɛ-/ 名詞
Ef·face·ment n. The act if effacing; also, the result of the act.
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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]