名词

1. the act or process of changing the color of something

Synonym: colouring

2. a visual attribute of things that results from the light they emit or transmit or reflect

e.g. a white color is made up of many different wavelengths of light

Synonym: colorcolourcolouring

3. a digestible substance used to give color to food

e.g. food color made from vegetable dyes

Synonym: colouringfood coloringfood colouringfood colorfood colour