资料来源 : Webster's Revised Unabridged Dictionary (1913)

Effaceable \Ef*face"a*ble\, a.
   Capable of being effaced.

资料来源 : WordNet®

effaceable
     adj : capable of being effaced;  "the fire's worst scars were
           effaceable by a comprehensive program of
           reforestation"; "a signal too loud to be erasable in a
           single pass through the erase head" [syn: {erasable}]