What is another word for colourant?
Pronunciation: [kˈʌlɜːɹənt] (IPA) 
The word colourant refers to a substance, typically a chemical or dye, that is used to add color to another substance or material. Some common synonyms for colourant include pigment, dye, tincture, colorant, and hue. Pigment refers to a substance that imparts color to another substance by absorbing certain wavelengths of light. Dye is a coloring agent that is applied to a material to change its color. Tincture is a type of liquid colourant that is often used in medicine. Colorant refers to any substance that is used to add color to another substance, while hue refers to a particular shade or tint of color.
