colorant

[ kuhl-er-uh nt ]
/ ˈkʌl ər ənt /

noun

something used as a coloring matter; pigment; dye.

Origin of colorant

1880–85; < French, present participle of colorer < Latin colōrāre to color. See color, -ant

British Dictionary definitions for colorant

colorant
/ (ˈkʌlərənt) /

noun

any substance that imparts colour, such as a pigment, dye, or ink; colouring matter