achromatism
AmericanEtymology
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.
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 Albert A. Michelson
The perfect achromatism of a reflector is, of course, a great advantage, but the chromatic aberration of refractors is now so well corrected that their inferiority in that respect may be disregarded.
From Pleasures of the telescope An Illustrated Guide for Amateur Astronomers and a Popular Description of the Chief Wonders of the Heavens for General Readers by Garrett Putman Serviss
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 John Tyndall
The state or quality of being achromatic; as, the achromatism of a lens; achromaticity.
From Webster's Unabridged Dictionary by Noah Webster
Leonhard Euler in 1747 had suggested that achromatism might be obtained by the combination of glass and water lenses.
From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" by Various
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
