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# Chromaticity coordinates

plural noun
1.
(physics) three numbers used to specify a colour, each of which is equal to one of the three tristimulus values divided by their sum Symbols x, y, z

Tagged:

• Chromaticity diagram

noun 1. (physics) a diagram in which values of two chromaticity coordinates are marked on a pair of rectangular axes, a point in the plane of these axes representing the chromaticity of any colour

• Chromaticness

/krəʊˈmætɪknɪs/ noun 1. (physics) the attribute of colour that involves both hue and saturation

• Chromatic number

mathematics The smallest number of colours necessary to colour the nodes of a graph so that no two adjacent nodes have the same colour. See also: four colour map theorem. Graph Theory Lessons (http://utc.edu/~cpmawata/petersen/lesson8.htm). Eric Weisstein’s World Of Mathematics (http://mathworld.wolfram.com/ChromaticNumber.html). The Geometry Center (http://geom.umn.edu/~zarembe/grapht1.html). (2000-03-18)

• Chromatics

[kroh-mat-iks, kruh-] /kroʊˈmæt ɪks, krə-/ noun, (used with a singular verb) 1. the science of colors. /krəʊˈmætɪks/ noun 1. (functioning as sing) the science of colour

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