as in brightness
the quality or state of having or giving off light
the luminosity of the fireflies made for an enchanting nighttime show
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
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
-
To qualify as a bolide, an incoming meteor must reach the brightness of Venus, which, like the moon, is often visible in the daytime sky.—
Jeffrey Kluger,
Time,
27 June 2025
-
The brightness and color reproduction are lackluster, almost as if Acer deliberately found the most middling budget screen possible.—
PC Magazine,
PC Magazine,
27 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
-
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
-
Exactly in that single sentence, all of Matt's brilliance tied up into this one thing.—
Rob Wieland,
Forbes.com,
30 June 2025
-
Expect moments of clarity and flashes of brilliance to illuminate your path.—
Valerie Mesa,
People.com,
28 June 2025
Noun
-
When the theme arrived in the cellos, Guerrero maintained their levity and grace throughout the movement — and, in fact, throughout much of the piece, bringing an aerodynamic lightness even to the symphony’s final cadence.—
Hannah Edgar,
Chicago Tribune,
21 June 2025
-
After Appeals Court Pauses Ruling While the bolster gives support and balance to the knife, the lightness of the bolster-free Japanese knives offers ergonomic benefits.—
Akiko Katayama,
Forbes.com,
13 June 2025
Cite this Entry
“Luminosity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/luminosity. Accessed 5 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share