/truy'kroh mat"ik, -kreuh-/ , adj.
1. pertaining to the use or combination of three colors, as in printing or in color photography.
2. pertaining to, characterized by, or involving three colors.
3. Ophthalm. of, pertaining to, or exhibiting normal color vision.
Also, trichromic /truy kroh"mik/ .
[ 1890-95; TRI- + CHROMATIC ]