luminosity
[loo-muh-nos-i-tee]
noun, plural lu·mi·nos·i·ties.
the quality of being intellectually brilliant, enlightened, inspired, etc.: The luminosity of his poetry is unequaled.
something luminous.
Astronomy. the brightness of a star in comparison with that of the sun: the luminosity of Sirius expressed as 23 indicates an intrinsic brightness 23 times as great as that of the sun.
Also called luminosity factor. Optics. the brightness of a light source of a certain wavelength as it appears to the eye, measured as the ratio of luminous flux to radiant flux at that wavelength.
Origin of luminosity
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for luminosity
Contemporary Examples of luminosity
Historical Examples of luminosity
It is the radiations of light which they throw off; it is their luminosity—their transparency.
Sex=The Unknown QuantityAli Nomad
There was luminosity where the ships had encountered each other.
The AliensMurray Leinster
Value or luminosity of colors ranges between these two extremes.
A Color NotationAlbert H. Munsell
But this luminosity is not entirely confined to the minute creatures of the sea.
The Ocean and its WondersR.M. Ballantyne
He nodded toward the circular area of luminosity on the sea.
Creatures of the AbyssMurray Leinster
luminosity
noun plural -ties
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Online Etymology Dictionary, © 2010 Douglas Harper