The Collaborative International Dictionary
Trichromatic
Trichromatic \Tri`chro*mat"ic\, a. [Pref. tri- + chromatic.] (Zo["o]l.) Having or existing in three different phases of color; having three distinct color varieties; -- said of certain birds and insects.
Wiktionary
trichromatic
a. 1 Involving three colours 2 Having perception in three primary colours
WordNet
Usage examples of "trichromatic".
Under the glare of the trichromatic lights-so dazzling that they pained the eyes-the long, broad corridors seemed to stretch to infinity.