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
That’s because some four billion years ago, our sun had only about 70 percent of its current luminosity.
—
Bruce Dorminey, Forbes, 20 Oct. 2024
One is directly, by observing 'standard candles' — that is, objects with predictable luminosities such as Cepheid variables, type Ia supernova explosions, and red giant stars — in galaxies and determining how far away they are based on the apparent brightness of these standard candles.
—Keith Cooper, Space.com, 22 Jan. 2025
The interaction between these two stars incites a fierce reaction that will massively increase the luminosity of the star system for a brief amount of time.
—Jack Knudson, Discover Magazine, 6 Jan. 2025
Because of that design, the luminosity of precise areas of the headlight can be limited while the overall brightness is pushed up, up, up.
—Peter Rubin, Longreads, 5 Dec. 2024
See All Example Sentences for luminosity
Bruce Dorminey, Forbes, 20 Oct. 2024
One is directly, by observing 'standard candles' — that is, objects with predictable luminosities such as Cepheid variables, type Ia supernova explosions, and red giant stars — in galaxies and determining how far away they are based on the apparent brightness of these standard candles.
—Keith Cooper, Space.com, 22 Jan. 2025
The interaction between these two stars incites a fierce reaction that will massively increase the luminosity of the star system for a brief amount of time.
—Jack Knudson, Discover Magazine, 6 Jan. 2025
Because of that design, the luminosity of precise areas of the headlight can be limited while the overall brightness is pushed up, up, up.
—Peter Rubin, Longreads, 5 Dec. 2024
See All Example Sentences for luminosity
Recent Examples of Synonyms for luminosity
Noun
-
The upper-right-hand side of the bar has two areas: one includes the equivalent of notification tray icons, and the other offers quick access to screen brightness, network connection, sound, and Dark Style settings.—
PCMAG,
PCMAG,
14 Feb. 2025
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But everyone agreed that Girard’s best quality was its brightness—that zing of acidity that balanced its salty, savory bite.—
Sam Stone,
Bon Appétit,
13 Feb. 2025
Noun
-
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
-
The Red Planet, shining at magnitude –1.4, is 40° to the east-northeast, and the king of planets, Jove, still near its greatest brilliancy for the year at magnitude –2.8, lies 46° west-southwest of Luna.—
Michael E. Bakich,
Discover Magazine,
7 Nov. 2022
Noun
-
Luka Doncic and the Los Angeles Lakers Live | Stream on Fubo with NBA League Pass With Doncic's elite playmaking and scoring ability combined with LeBron's all-around brilliance, the Lakers instantly became one of the most entertaining teams in the league.—
Dan Perry,
Newsweek,
20 Feb. 2025
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Over the past decade, she's added a range of characters to her repertoire that attest to her brilliance and versatility.—
Christian John Wikane,
People.com,
15 Feb. 2025
Noun
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Not far from Khao Yai National Park, Yellow Submarine Coffee Tank is one of the few examples of brutalist architecture in the area that has a lightness exuding an almost Japanese-like zen.—
Lane Nieset,
Vogue,
17 Feb. 2025
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The collections hinged on high-tech fabric solutions which enhanced features such as lightness, stretchability, softness and comfort.—
Andrea Onate,
WWD,
10 Feb. 2025
Cite this Entry
“Luminosity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/luminosity. Accessed 3 Mar. 2025.
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