Definitions for "Trichromatic"
Having or existing in three different phases of color; having three distinct color varieties; -- said of certain birds and insects.
having or involving three colors; "trichromatic vision"; "a trichromatic printing process"; "trichromatic staining is the staining of tissue samples differentially in three colors"; "tricolor plumage"; "a tricolor process in photography"
The technical name for RGB representation of colour to create all the colours in the spectrum.