luminosity
noun
lu·mi·nos·i·ty
ˌlü-mə-ˈnä-sə-tē 
plural luminosities
1
a
: the quality or state of being luminous
b
: something luminous
2
a
: the relative quantity of light
b
: relative brightness of something
3
: the relative quantity of radiation emitted by a celestial source (such as a star)
Synonyms
Examples of luminosity in a Sentence
the luminosity of the fireflies made for an enchanting nighttime show
Recent Examples on the Web
The coco-palm flower opens with this incredible luminosity that kept pulling me back for another inhale all day long.
—
Kimberly Wilson, Essence, 25 Oct. 2024
According to the brand, Hugh Dutton’s kinetic light sculpture nods to the luminosity of Tiffany & Co. diamonds, an aim to unite artistry with craftsmanship, and immerse visitors in the jeweler’s world.
—Thomas Waller, WWD, 18 Oct. 2024
These stars flicker at a rate that relates to (and can therefore reveal) their intrinsic luminosity.
—Liz Kruesi, WIRED, 8 Sep. 2024
Tuchow explains that a star's luminosity will also evolve throughout its lifetime, altering the position of the habitable zone.
—Conor Feehly, Discover Magazine, 9 Oct. 2024
See all Example Sentences for luminosity 
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Kimberly Wilson, Essence, 25 Oct. 2024
According to the brand, Hugh Dutton’s kinetic light sculpture nods to the luminosity of Tiffany & Co. diamonds, an aim to unite artistry with craftsmanship, and immerse visitors in the jeweler’s world.
—Thomas Waller, WWD, 18 Oct. 2024
These stars flicker at a rate that relates to (and can therefore reveal) their intrinsic luminosity.
—Liz Kruesi, WIRED, 8 Sep. 2024
Tuchow explains that a star's luminosity will also evolve throughout its lifetime, altering the position of the habitable zone.
—Conor Feehly, Discover Magazine, 9 Oct. 2024
See all Example Sentences for luminosity
Dictionary Entries Near luminosity
Cite this Entry
“Luminosity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/luminosity. Accessed 22 Nov. 2024.
Copy CitationKids Definition
luminosity
noun
lu·mi·nos·i·ty
ˌlü-mə-ˈnäs-ət-ē
plural luminosities
1
: the quality or state of being luminous : brightness
2
: something luminous
Medical Definition
luminosity
noun
lu·mi·nos·i·ty
ˌlü-mə-ˈnäs-ət-ē
plural luminosities
1
: the quality or state of being luminous
2
a
: the relative quantity of light
b
: the comparative degree to which light of a given wavelength induces the sensation of brightness when perceived
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