Definition of


  1. (noun, artifact) a wash that colors a surface black
  2. (noun, artifact) a mixture of calomel and limewater that is used on syphilitic sores
  3. (noun, communication) an attack intended to ruin someone's reputation
  4. (verb, change) color with blackwash
  5. (verb, communication) bring (information) out of concealment

via WordNet, Princeton University

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Jan Amos Komensky

Czech educational reformer (1592-1670)