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WordReference Random House Unabridged Dictionary of American English © 2024or•tho•chro•mat•ic (ôr′thə krō mat′ik, -thō krə-),USA pronunciation adj. [Photog.]- Photographyrepresenting correctly the relations of colors as found in a subject;
isochromatic. - Photography(of an emulsion) sensitive to all visible colors except red;
isochromatic.
- ortho- + chromatic 1885–90
Collins Concise English Dictionary © HarperCollins Publishers:: orthochromatic /ˌɔːθəʊkrəʊˈmætɪk/ adj - 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 light
Sometimes shortened to: ortho
Compare panchromatic
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