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Dictionary

ach•ro•mat•ic

Pronunciation: (ak"ru-mat'ik, ā"kru-), [key]
—adj.
1. Optics.
a. free from color.
b. able to emit, transmit, or receive light without separating it into colors.
2. Biol.(of a cell structure) difficult to stain.
3. Music.without accidentals or changes in key.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

achromate

achromaticity

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