from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Any of various light-resistant and heat-resistant, semitransparent blue pigments of powerful tinctorial strength, used chiefly in permanent industrial finishes, printing inks, and artists' colors.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun slightly purplish or bluish dark grey
  • noun any of various blue pigments


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