a visual attribute of things that results from the light they emit or transmit or reflect | a device for showing the operating condition of some system |
the appearance of objects (or light sources) described in terms of a person's perception of their hue and lightness (or brightness) and saturation | a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time |
the timbre of a musical sound | a signal for attracting attention |
interest and variety and intensity | (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 |
an outward or token appearance or form that is deliberately misleading | |
(physics) the characteristic of quarks that determines their role in the strong interaction | |
any material used for its color | |