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Showing results for achromatism. Search instead for achromatisms.

achromatism

American  
[ey-kroh-muh-tiz-uhm] / eɪˈkroʊ məˌtɪz əm /

noun

Optics.
  1. freedom from color.

  2. freedom from chromatic aberration, as in an achromatic lens.


Etymology

Origin of achromatism

First recorded in 1790–1800; achromat(ic) + -ism

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He will find that he has not given exactly the proper curves to secure achromatism.

From Side-Lights on Astronomy and Kindred Fields of Popular Science by Newcomb, Simon

The absence of this error is termed achromatism, and an optical system so corrected is termed achromatic.

From The Project Gutenberg Encyclopedia Volume 1 of 28 by Project Gutenberg

Thus examined, the departure of the eye from achromatism appears very gross indeed.

From Six Lectures on Light Delivered In The United States In 1872-1873 by Tyndall, John

As the diameter of the lens was so small in comparison with its focal length, its want of achromatism was inappreciable.

From Experimental Determination of the Velocity of Light Made at the U.S. Naval Academy, Annapolis by Michelson, Albert A.

The state or quality of being achromatic; as, the achromatism of a lens; achromaticity.

From Webster's Unabridged Dictionary by Webster, Noah

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