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Meanings of achromatism in English
The visual property of being without chromatic color.
The total inability to perceive colors.
Synonyms
Examples for "colourlessness"
Examples for "colourlessness"
1
There was something about its very colourlessness which made it sound oracular.
2
He had a steely colourlessness, and a steely pliability, and a steely strength.
3
She was elderly, tall, and harshly thin, with a hard colourlessness of face.
4
The brown flecks in the eyes seemed to spread and engulf the surrounding colourlessness.
5
Odo suspected a certain colourlessness in the life she depicted.
1
Her sheeny hair and vivid makeup were dazzling against the colorlessness of the room.
2
She was clothed in velvet, which gave to her cheek and brow the colorlessness of marble.
3
The leached colorlessness, the depression in the forehead.
4
He exhaled noisily, letting the congregation know that he was sorry to fail them with his colorlessness.
5
She looked very beautiful in her unconfined gown, the red tone heightening the creamy colorlessness of her face.
Usage of achromatism in English
1
He will find that he has not given exactly the proper curves to secure achromatism.
2
This artifice is specially adopted in objectives for astronomical photography (''pure actinic achromatism'').
3
Soc., 1878), the most suitable for visual instruments (''optical achromatism,').
4
The absence of this error is termed achromatism, and an optical system so corrected is termed achromatic.
5
As the diameter of the lens was so small in comparison with its focal length, its want of achromatism was inappreciable.
6
His encounter with achromatism also seems to have left an impression of the disabled helping each other to cope, to learn, to advance.
7
Newton failed to perceive the existence of media of different dispersive powers required by achromatism; consequently he constructed large reflectors instead of refractors.
8
For two thin lenses separated by a distance D the condition for achromatism is D = v1f1+v2f2; if v1=v2 (e.g.
9
Achromatic Eye-Pieces of Telescopes, and on the Achromatism of Microscopes.
10
(This explains the gigantic focal lengths in vogue before the discovery of achromatism.)
11
In uniting three colours an ''achromatism of a higher order'' is derived; there is yet a residual ''tertiary spectrum,'' but it can always be neglected.
Frequent collocations
Achromatism through the time