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luminosity

/loo-muh-nos-i-tee/US // ˌlu məˈnɒs ɪ ti //UK // (ˌluːmɪˈnɒsɪtɪ) //

光度,发光率,发光量,发光性

Related Words

Definitions

n.名词 noun
  1. 1

    plural lu·mi·nos·i·ties.

    • : luminance.
    • : 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.

Synonyms & Antonyms

Examples

  • Maybe—maybe—some people might have seen a fluorescent luminosity in the original pigments.

  • I wanted to write fiction, which was what Barry was reading, and he had wrapped me in sentences like cords of luminosity.

  • The first rung consists of “standard candle” stars in and around our own galaxy that have well-defined luminosities, and which are close enough to exhibit parallax — the only sure way to tell how far away things are without traveling there.

  • It basically breaks our understanding of the luminosities and brightnesses that kilonovae are supposed to have.

  • These sculptures are in his typical style—figures molded out of colorful stainless steel with striking luminosity.

  • Nikos Kazantzakis had no problems writing a moving novel of beauty, profundity, and luminosity.

  • So the plan as of a few years ago in the back of people's minds was to go to a higher luminosity.

  • Our fellows were being hard beset to hold on to what they had won; there, where the horizon stood out with spectral luminosity.

  • The night grows dark, the wind rises and is cold, and the tide changes; so does the luminosity of the sea.

  • Other naturalists who have had opportunities of seeing the insect in its native regions strongly deny its luminosity.

  • The ideal method looks to the use of a very rich gas, and the burning of it with a maximum of luminosity.

  • Recently an extraordinary instance of luminosity was recorded as occurring in our own country.