Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Noun: luminosity  ,loo-mu'nó-si-tee
  1. The quality of being luminous; emitting or reflecting light
    "its luminosity is measured relative to that of our sun";
    - brightness, brightness level, luminance, luminousness, light

Derived forms: luminosities

See also: bright, dull

Type of: physical property

Encyclopedia: Luminosity, powered by Pepsi