noun, plural lu·mi·nos·i·ties.
- luminosity class,
- luminous efficacy,
- luminous efficiency,
- luminous emittance
Origin of luminosity
Examples from the Web for luminosity
Nikos Kazantzakis had no problems writing a moving novel of beauty, profundity, and luminosity.
All that remained visible now was the jumbled mass of needle-pointed sparks of luminosity.
It was set flush with the wooden floor of the room, and seemed to be nothing more than a square carpet of luminosity.Cube Root of Conquest|Roger Phillips Graham
The outlines of this luminosity were more clearly defined than those of the light which floated about the room.Metapsychical Phenomena|J. Maxwell
I did not doubt that luminosity could be excited in a closed tube when electrostatic action is completely excluded.The inventions, researches and writings of Nikola Tesla|Thomas Commerford Martin
Mistcherlich's method is based upon the luminosity of the vapors of phosphorus.Legal Chemistry|A. Naquet
noun plural -ties
1630s, "quality of being luminous," from French luminosité or else a native formation from luminous + -ity. In astronomy, "intrinsic brightness of a heavenly body" (as distinguished from apparent magnitude, which diminishes with distance), attested from 1906.