the appearance of objects (or light sources) described in terms of a person's perception of their hue and lightness (or brightness) and saturation(noun.attribute)
a substance used as a coating to protect or decorate a surface (especially a mixture of pigment suspended in a liquid); dries to form a hard coating (noun.artifact)
(chemistry) a substance that changes color to indicate the presence of some ion or substance; can be used to indicate the completion of a chemical rea more..(chemistry) a substance that changes color to indicate the presence of some ion or substance; can be used to indicate the completion of a chemical reaction or (in medicine) to test for a particular reaction(noun.substance)
the appearance of objects (or light sources) described in terms of a person's perception of their hue and lightness (or brightness) and saturation(noun.attribute)