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Noun: achromatism  ey'krow-mu,ti-zum
  1. The visual property of being without chromatic colour
    "The achromatism of the winter landscape was broken only by a red cardinal";
    - colorlessness [US], colourlessness [Brit, Cdn], achromaticity

Derived forms: achromatisms

Type of: visual property

Antonym: color [US]

Encyclopedia: Achromatism