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achromatism

[ey-kroh-muh-tiz-uh m]
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noun Optics.
  1. freedom from color.
  2. freedom from chromatic aberration, as in an achromatic lens.

Origin of achromatism

First recorded in 1790–1800; achromat(ic) + -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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achromatism in Medicine

achromatism

(ā-krōmə-tĭz′əm, ə-krō-)
n.
  1. The quality of being achromatic.
  2. The correction of chromatic aberration by combining lenses of different refractive indexes and different dispersion.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.