Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A person capable of identifying four primary colors, rather than three (trichromat).

Etymologies

From Ancient Greek tetra (four) + chroma (color) (Wiktionary)

Examples

  • And I think it's a bit difficult to know exactly how a non-human tetrachromat perceives light and color, though it's an intriguing possibility.

    The Color Wheel, Part 2

  • the difference being that you need two angles meaning that if you are tetrachromat, you have to consider a color "sphere" to describe hues, not a color "circle".

    Charting Pigments

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