What does Effacement of cfs mean?

Im not really sure on this one. Help anyone?

[selmaS]

  Hi...ef·face  (-fs)
tr.v. ef·faced, ef·fac·ing, ef·fac·es
1. To rub or wipe out; erase.
2. To make indistinct as if by rubbing: "Five years' absence had done nothing to efface the people's memory of his firmness" (Alan Moorehead). See Synonyms at erase.
3. To conduct (oneself) inconspicuously: "When the two women went out together, Anna deliberately effaced herself and played to the dramatic Molly" (Doris Lessing).

effacement - withdrawing into the background; making yourself inconspicuous
self-effacement
withdrawal - the act of withdrawing; "the withdrawal of French troops from Vietnam

[selmaS]

  Hi...ef·face  (-fs)
tr.v. ef·faced, ef·fac·ing, ef·fac·es
1. To rub or wipe out; erase.
2. To make indistinct as if by rubbing: "Five years' absence had done nothing to efface the people's memory of his firmness" (Alan Moorehead). See Synonyms at erase.
3. To conduct (oneself) inconspicuously: "When the two women went out together, Anna deliberately effaced herself and played to the dramatic Molly" (Doris Lessing).

effacement - withdrawing into the background; making yourself inconspicuous
self-effacement
withdrawal - the act of withdrawing; "the withdrawal of French troops from Vietnam