orthochromatic

[awr-thuh-kroh-mat-ik, -thoh-kruh-]

adjective Photography.

representing correctly the relations of colors as found in a subject; isochromatic.

(of an emulsion) sensitive to all visible colors except red; isochromatic.

Nearby words

Origin of orthochromatic

First recorded in 1885–90; ortho- + chromatic

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for orthochromatic

I will give to a common plate about four seconds, an orthochromatic plate under the same conditions five seconds.
Scientific American Supplement, No. 711, August 17, 1889|Various
This chart has been photographed in the orthochromatic and also in the ordinary way.
Scientific American Supplement, No. 711, August 17, 1889|Various
On the few occasions when orthochromatic plates are used the lamp need not be lighted.
Photographs of Nebul and Clusters|James Edward Keeler
Orthochromatic results exhibited by Dixon and Sons at the photographic exhibition in October.
The Evolution of Photography |John Werge

The isochromatic and orthochromatic plates on the market are corrected, and are the best to use.
The Scrap Book, Volume 1, No. 1|Various

British Dictionary definitions for orthochromatic

orthochromatic

adjective

photog of or relating to an emulsion giving a rendering of relative light intensities of different colours that corresponds approximately to the colour sensitivity of the eye, esp one that is insensitive to red lightSometimes shortened to: ortho Compare panchromatic

Derived Formsorthochromatism (ˌɔːθəʊˈkrəʊməˌtɪzəm), noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for orthochromatic

orthochromatic

[ôr′thə-krō-măt′ĭk]

adj.

Staining with the same color as that of the dye used. Used of a cell or tissue.