Definition of "erasure"

erasure

/ɪˈɹeɪʃɚ/

noun
countable and uncountable, plural erasures
1. The action of erasing; deletion; obliteration.
  Quotations
  The past was erased, the erasure was forgotten, the lie became truth.
  1949 June 8, George Orwell [pseudonym; Eric Arthur Blair], “Chapter 7”, in Nineteen Eighty-Four: A Novel, London: Secker & Warburg; republished [Australia]: Project Gutenberg of Australia, August 2001
2. The state of having been erased; total blankness.
  Quotations
  Bush, even when he had the floor, grimaced as he spoke, except on several occasions when he lost his way and a look of total erasure came over him, a blank, stricken stare for which the French, alas, have the most apt expression: like a cow watching a train go by.
  2004 October 18, The New Yorker
3. The place where something has been erased.
4. (sociology) A tendency to ignore or conceal an element of society.