from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Of, relating to, or having three colors, as in photography or printing.
- adj. Having perception of the three primary colors, as in normal vision: trichromatic vision; a trichromatic individual.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Involving three colours
- adj. Having perception in three primary colours
from the GNU version of the Collaborative International Dictionary of English
- adj. Having or existing in three different phases of color; having three distinct color varieties; -- said of certain birds and insects.
from The Century Dictionary and Cyclopedia
- Characterized by three colors; in a specific sense, having the three fundamental color-sensations of red, green, and purple, as the normal eye, in distinction from a color-blind eye, which can perceive only two of the fundamental colors.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. having or involving three colors
In addition, while we base our 'trichromatic' color combinations on red, blue, and green, bees base their colors on UV, blue, and green a much richer type of light.
Long ago, before the dinosaurs, our early fish-like ancestors had trichromatic vision (three cone receptors).
This explains why primates are the only mammals who have trichromatic vision - it is a trait mostly found in birds and reptiles (dinosaur descendents).
Even then, it's mostly old-world primates who are trichromatic; for new-world monkeys, only some females (depending on individual inheritance rather than species) are trichromatic.
People had trichromatic vision, acute aural capacities, a fair sense of smell, the ability to feel textures and taste bitterness.
Not that I bought that conclusion (trichromatic vision is another extremely interesting poke full of NDS Anazi Tales), but it was another fine stone for the soup.
Such as the finding that primates apparently traded olfactory receptor genes for trichromatic vision.
In Le Blon's system, white was supplied by the paper and, as trichromatic theories indicated, overlayering of all three inks would create black.
His color system is based on artistic understanding of light rather than the prismatic colors used in wheels or bars of color, or the artist-based trichromatic theories that inspired Mayer, although he includes them both in his form.
The trichromatic ideal was explained by Jacob Christoph Le Blon, used by Charles-François Dufay, adjusted by Jacques-Fabien Gautier and Louis-Bertrand Castel, made visible by Tobias Mayer, Moses Harris, Johann Heinrich Lambert and others. reference reference reference reference The concept, its connections to theory more or less intact, was included in presentations of practical advice about color production and color use for many different specialties.
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