a visual attribute of things that results from the light they emit or transmit or reflect | a green patina that forms on copper or brass or bronze that has been exposed to the air or water for long periods of time |
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 blue or green powder used as a paint pigment |
the timbre of a musical sound | |
interest and variety and intensity | |
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 | |