Dictionary
Find
in
Dictionary
Thesaurus
Translations

Click to move up the list of words
lump (2)
lump sum
lumpectomy
lumpen
lumpenproletariat
lumper
lumpfish
lumpish
lumpsucker
lumpy
lumpy jaw
Lumumbist
Luna
luna moth
lunacy
lunar
lunar caustic
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

luminosity

lu·mi·nos·i·ty [ lmə nóssətee ] (plural lu·mi·nos·i·ties)


noun 
Definition:
 
1. state of being luminous: the state or quality of being luminous

2. energy radiated by astronomical object: the energy radiated per second by an astronomical object.
Symbol  L


3. strength of light emitted: the visual perception of the extent to which an object emits light

4. something luminous: something that emits light

Advertisement

© 2009 Microsoft