any substance that imparts colour, such as a pigment, dye, or ink; colouring matter
WordReference Random House Unabridged Dictionary of American English © 2025
col•or•ant
(kul′ər ənt),USA pronunciation n.
- something used as a coloring matter;
pigment;
dye.
- Latin colōrāre to color. See color, -ant
- French, present participle of colorer
- 1880–85
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