| n. | 1. | same as coloring. |
| Noun | 1. | colouring - a digestible substance used to give color to food; "food color made from vegetable dyes" |
| 2. | colouring - 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" | |
| 3. | colouring - the act or process of changing the color of something Synonyms: coloring |