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Meaning of achromatic

ach•ro•mat•ic

Pronunciation: (ak"ru-mat'ik, ā"kru-), [key]
— adj.
    1. free from color.
    2. able to emit, transmit, or receive light without separating it into colors.
  2. (of a cell structure) difficult to stain.
  3. without accidentals or changes in key.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
achromate achromaticity