1. (

• coloring ,
• colouring ,
• food_coloring ,
• food_colouring ,
• food_color ,
• food_colour

) a digestible substance used to give color to food; "food color made from vegetable dyes" ;

2. (

• color ,
• colour ,
• coloring ,
• 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. (

• coloring ,
• colouring

) the act or process of changing the color of something ;