luminosity

noun

ˌlü-mə-ˈnä-sə-tē How to pronounce luminosity (audio)
Definition of luminositynext
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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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 The consensus was to focus first on upgrading the LHC to increase its luminosity—the number of collisions per second—rather than immediately beginning to build a successor. — Florencia Canelli, Scientific American, 1 July 2026 Tory Burch Sublime Shimmer Ideal for weddings, summer parties and evening dinners, adding subtle luminosity without overpowering your look. — Corein Carter, Forbes.com, 29 June 2026 That suggests the rules governing black hole luminosity haven’t changed in at least 13 billion years. — ArsTechnica, 27 May 2026 While Russia has claimed GDP expanded by about 13% between 2020 and 2024, Sweden’s analysis of nighttime luminosity suggests the economy actually shrank by 8% during that span. — Jason Ma, Fortune, 24 May 2026 See All Example Sentences for luminosity
Recent Examples of Synonyms for luminosity
  1. brightness
  2. brilliancy
  3. brilliance
  4. lightness
Noun
  • Between 2017 and 2023, Sickafoose's team probed Pluto's atmosphere during ten occultations of stars ranging in brightness from about magnitude 12 to magnitude 18, far below naked-eye visibility.
    — Keith Cooper, Space.com, 10 Aug. 2026
  • Saie’s Glowy Super Gel is a luminous, hydrating, primer-meets-base that truly gives the look of a post Euro-summer glow and brightness.
    — Reece Andavolgyi, InStyle, 8 Aug. 2026
Definition of brightness
Noun
  • The result is an incredible repository of vexations, bafflements, witticisms, and brilliancies.
    — Becca Rothfeld, New Yorker, 1 June 2026
  • 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
Definition of brilliancy
Noun
  • Mathys Tel has shown a few moments of brilliance on the left wing, but De Zerbi needs somebody capable of delivering on a consistent basis.
    — Chris Weatherspoon, New York Times, 5 Aug. 2026
  • Wilson is right that Nolan’s movie lacks Odysseus’ egomaniacal brilliance.
    — Amy Nicholson, Los Angeles Times, 4 Aug. 2026
Definition of brilliance
Noun
  • Gus Birney, Shulman’s real-life daughter, brings an ineffable lightness to Sarah Nell, the joyfulness and sweetness of the portrayal all the more wondrous before of all the darkness that surrounds it.
    — Christopher Arnott, Hartford Courant, 10 Aug. 2026
  • What character does is govern how a person understands and inhabits these qualities with humanity, with justice, with humility, with the appropriate lightness of not confusing oneself for one’s category.
    — Mary Crossan, Forbes.com, 31 July 2026
Definition of lightness

Browse Nearby Words

luminescing
luminosity
luminous
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Cite this Entry

“Luminosity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/luminosity. Accessed 11 Aug. 2026.

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More from Merriam-Webster on luminosity

Nglish: Translation of luminosity for Spanish Speakers

Britannica.com: Encyclopedia article about luminosity

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