achromatism

Dictionary: A·chro·ma·tism

[Cf. F. achromatisme.]
The state or quality of being achromatic; as, the achromatism of a lens; achromaticity. Nichol.

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(ā-krō'mə-tĭz'əm, ə-krō'-)
n.

The quality of being achromatic.
The correction of chromatic aberration by combining lenses of different refractive indexes and different dispersion.

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The noun has one meaning:

Meaning #1: the visual property of being without color
Synonyms: colorlessness, colourlessness

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		Dictionary. Webster 1913 Dictionary edited by Patrick J. Cassidy Read more
		Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Read more
		WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. Read more