chromaticity

chromaticity

[kroh-muh-tis-i-tee]
noun Optics.
the quality of a color as determined by its dominant wavelength and its purity.

Origin:
1900–05; chromatic + -ity

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chromaticity (ˌkrəʊməˈtɪsɪtɪ)
 
n
the quality of a colour or light with reference to its purity and its dominant wavelength

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