Duochrome
adj, adv, noun ·Uncommon ·Advanced level
Definitions
- 1 The duochrome test, a test used by opticians to refine the correction of refractive error, in which the subject is asked to compare images presented with red and green backgrounds.
"When using the duochrome, there may not be an exact endpoint because the chances of the spectacle refraction falling into a 0.25 DS endpoint are fairly remote."
- 2 An image composed of varying shades (grayscale) of two colors.
"Where a color original such as a transparency, color print, or color artwork is furnished, additional impact and interest can be obtained with the duochrome."
- 3 A piece of pottery decorated in two colors.
"Jugs 9-10 and 15 are obviously the last vestiges of earlier duochrome ware."
- 4 A color scheme consisting of only two hues.
"All was immaculately in keeping, a duochrome of terracotta and brick, with niches for Elizabeth II matching those of her great-great grandparents, Victoria and Albert, on the North Porch."
- 5 Fabric that shifts between two colors, depending on the angle of light, also, by extension, something made with such fabric.
"So she'd worn one of her own creations, a duochrome that shifted from turquoise to a rich blue depending on how the light hit it."
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- 6 A fluorochrome that shows up in either of two colors, depending on the type of biological material it stains.
"[…] which seem to be positive for two fluorochromes, i.e., the intact duochrome and the first component of the disintegrated duochrome."
- 1 Pertaining to the red and green colors of the duochrome test. not-comparable
"Cockerham claims that there are a number of advantages with his duochrome fixation attachment over the ordinary illuminated target."
- 2 Composed of two colors. not-comparable
"We were boldly duochrome in our bear-up black sweatpants and white sleeveless T-shirts with crosses and religious medals dangling from our necks, sort of a City Ballet meets St. Mark's Place kind of look."
- 1 In two colors. not-comparable
"Mark showed his father how you could push down two of the coloured ballpoints at once, and so write duochrome."
Example
More examples"When using the duochrome, there may not be an exact endpoint because the chances of the spectacle refraction falling into a 0.25 DS endpoint are fairly remote."
Etymology
From duo- + chrome.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.