luminosity

play
noun lu·mi·nos·i·ty \ˌlü-mə-ˈnä-sə-tē\

Definition of luminosity

plural

luminosities

  1. 1a :  the quality or state of being luminousb :  something luminous

  2. 2a :  the relative quantity of lightb :  relative brightness of something

  3. 3 :  the relative quantity of radiation emitted by a celestial source (such as a star)

Examples of luminosity in a Sentence

  1. the luminosity of the fireflies made for an enchanting nighttime show

Recent Examples of luminosity from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'luminosity'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of luminosity

1634


Medical Dictionary

luminosity

play
noun lu·mi·nos·i·ty \ˌlü-mə-ˈnäs-ət-ē\

Medical Definition of luminosity

plural

luminosities

  1. 1:  the quality or state of being luminous

  2. 2a:  the relative quantity of lightb:  the comparative degree to which light of a given wavelength induces the sensation of brightness when perceived



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