as in brightness
the quality or state of having or giving off light
the luminosity of the fireflies made for an enchanting nighttime show
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Recent Examples of luminosity
In early 2002, a star named V838 Monocerotis, located about 20,000 light-years from Earth in the constellation Monoceros, suddenly brightened to 600,000 times the luminosity of our sun — briefly outshining every other star in the Milky Way.
—
Sharmila Kuthunur, Space.com, 24 Apr. 2025
Such supernovae also function as standard candles whose absolute luminosity is correlated with their evanescent, varying brightness; the Cepheids, whose distances can be calculated, are used to calibrate the absolute luminosity of the supernovae.
—Anil Ananthaswamy, Scientific American, 1 Apr. 2025
The luminosity mask option (called Luma Range) is accessible from a button on the Layers dialog and is good for isolating bright or dark areas.
—PC Magazine, 28 May 2025
With softer shapes and unique luminosity, these stones come into their own in gentle candlelight.
—Kate Matthams, Forbes.com, 23 May 2025
See All Example Sentences for luminosity
Sharmila Kuthunur, Space.com, 24 Apr. 2025
Such supernovae also function as standard candles whose absolute luminosity is correlated with their evanescent, varying brightness; the Cepheids, whose distances can be calculated, are used to calibrate the absolute luminosity of the supernovae.
—Anil Ananthaswamy, Scientific American, 1 Apr. 2025
The luminosity mask option (called Luma Range) is accessible from a button on the Layers dialog and is good for isolating bright or dark areas.
—PC Magazine, 28 May 2025
With softer shapes and unique luminosity, these stones come into their own in gentle candlelight.
—Kate Matthams, Forbes.com, 23 May 2025
See All Example Sentences for luminosity
Recent Examples of Synonyms for luminosity
Noun
-
Nearly equal in brightness, the contrast in color will be striking.—
Jamie Carter,
Forbes.com,
16 June 2025
-
Enter the clip book light, a good way to light up the page at a brightness suitable for not-so-new eyes without harshing the reading vibes.—
Ars Staff,
ArsTechnica,
13 June 2025
Noun
-
So, astronomers have come up with a compromise regarding the geometry of the sun's illumination angle on Venus' disk versus its distance from Earth to determine the time of Venus' greatest brilliancy.—
Joe Rao,
Space.com,
4 Apr. 2025
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Family circles will have wrapped themselves in the holy pleasures of the great occasion, and everywhere the grand old holiday will have been introduced with all the majesty and brilliancy which clings around the hallowed name of Christmas.—
Michael Barnes,
Austin American-Statesman,
23 Dec. 2024
Noun
-
McDavid's individual brilliance still hasn't, with Florida denying the Oilers a Stanley Cup for a second consecutive season.—
Andrew Greif,
NBC news,
18 June 2025
-
The '80s and '90s were full of near-comebacks, false starts, flashes of brilliance under layers of confusion.—
Philip Martin,
Arkansas Online,
15 June 2025
Noun
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On the palate, the wine has splendid depth and width, just as its Cabernet Sauvignon offspring so often does in Napa; the difference is a lightness of touch here, an aerial grace, and a lithe ease of line to the tannins; the acidity remains tenderly supportive.—
Joseph V Micallef,
Forbes.com,
18 June 2025
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This cloud threatened to take over season 16, but the Grenada trip nipped it in the bud, reintroducing lightness and banter.—
Ile-Ife Okantah,
Vulture,
16 June 2025
Cite this Entry
“Luminosity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/luminosity. Accessed 1 Jul. 2025.
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