colouring

Noun (3)

1. a digestible substance used to give color to food“food color made from vegetable dyes”Synonyms: coloringfood coloringfood colouringfood colorfood colour
2. a visual attribute of things that results from the light they emit or transmit or reflect“a white color is made up of many different wavelengths of light”Synonyms: colorcolourcoloring
3. the act or process of changing the color of somethingSynonyms: coloring