|1.||[ noun ] the location of a visual perception along the black-to-white continuum|
|Related terms:||dullness light glint glare glitter luster radiance glint opalescence dazzle|
|2.||[ noun ] (psychology) intelligence as manifested in being quick and witty|
|3.||[ noun ] (physics) the quality of being luminous; emitting or reflecting light|
|Synonyms:||light luminosity brightness_level luminousness luminance|
"its luminosity is measured relative to that of our sun"
|Related terms:||physical_property luminescence illuminance incandescence light bright dull|