Brightness - Definition
brightness
n 1: the location of a visual perception along a continuum from
black to white [ant: dullness]
2: intelligence as manifested in being quick and witty [syn:
brightness, cleverness, smartness]
3: the quality of being luminous; emitting or reflecting light;
"its luminosity is measured relative to that of our sun"
[syn: luminosity, brightness, brightness level,
luminance, luminousness, light]