from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The condition or quality of being luminous.
- n. Something luminous.
- n. The ratio of luminous flux at a specific wavelength to the radiant flux at the same wavelength. Also called luminosity factor.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. the state of being luminous, or a luminous object; brilliance or radiance
- n. the ratio of luminous flux to radiant flux at the same wavelength; the luminosity factor
- n. the rate at which a star radiates energy in all directions
from the GNU version of the Collaborative International Dictionary of English
- n. The quality or state of being luminous; luminousness.
from The Century Dictionary and Cyclopedia
- n. The quality of being luminous or bright; luminousness; the radiation or reflection of light.
- n. Specifically, the intensity of light in a color, measured photometrically.
- n. In botany, phosphorescence.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the quality of being luminous; emitting or reflecting light
Sorry, no etymologies found.
The word luminosity describes the nature of celestial light, and the music of composer James Whitbourn is a celebration of that light: peaceful, radiant and clear.
The rods detect motion — changes in luminosity — better than do the cones.
Polaris fluctuates in its short-term luminosity as well.
25In their reply, Pettersson and Kirsch stressed the fact that the ratio in luminosity between alpha and H-particles (protons) does not permit such a mistake as Bates and Rogers attributed to them. 38 On July 19, even before the articles were published, Rutherford sent his results to Pettersson. 39 In a friendly and grateful response on July 27, Pettersson tried to reconcile and explain the discrepancies.
rates rate of change in star rotation rate star magnetic field variability stellar wind strength and variability short period variation in parent star diameter star's carbon to oxygen ratio star's space velocity relative to Local Standard of Rest star's short term luminosity variability star's long term luminosity variability amplitude and duration of star spot cycle number
How could the observer call the luminosity thus produced?
The orchestration here is very thick, but not at all heavy or cluttered; in fact, it has a uniquely peculiar luminosity, which is animated by its actually relatively thin, more truly contrapuntal texture.
Buddhism is less tongue-tied than this: reality has all the qualities of a Buddha, wakefulness, intelligence, compassion — attributes which are often called "luminosity" to distinguish it from sheer lack of existence.
The third turning teachings are often called "luminosity" to distinguish them from the second turning teachings on emptiness, though they are said not to contradict this view, but to complement it.
Diaz has turned at long last to Photoshop and the result is that his illustrations, rather than becoming mechanical or hackneyed, have taken on a kind of luminosity never achieved before.