#1 efface v. [obliterate] remove completely from recognition or memory; "efface the memory of the time in the camps". wn
#2 efface v. make inconspicuous; "efface oneself". wn
#3 efface v. [erase, rub out, score out, wipe off] remove by or as if by rubbing or erasing; "Please erase the formula on the blackboard--it is wrong!". wn
vizzz