noun. ['ˈkʌlɝˌrɪŋ'] a digestible substance used to give color to food.
noun. ['ˈkʌlɝˌrɪŋ'] the act or process of changing the color of something.
noun. ['ˈkʌlɝˌrɪŋ'] a visual attribute of things that results from the light they emit or transmit or reflect.