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

Synonyms & Similar Words

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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 In 2022, the United States had by far the highest total luminosity of any country, followed by China, India, Canada and Brazil. — Janet Loehrke, USA Today, 6 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
  • Without stricter coordination, brightness limits, debris controls, disposal rules, and international capacity planning, the next space race could damage the orbital lanes on which modern life now depends.
    — Atharva Gosavi, Interesting Engineering, 6 July 2026
  • The high ranking was thanks to the beach's deep blue water, unique golden sand, and low levels of visible concrete development, receiving an especially high score for its sand brightness.
    — Michael Cappetta, Travel + Leisure, 5 July 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
  • Three extraordinary new books, published this year, shed light on the brilliance and complexity of Morrison’s life and work, and place her as an American eminence, a visionary who saw fiction as a means through which to recast her country’s story.
    — Leigh Haber, Los Angeles Times, 2 July 2026
  • France has emerged as the World Cup's benchmark team, showcasing unparalleled individual brilliance and collective chemistry.
    — Clemente Lisi, Forbes.com, 1 July 2026
Definition of brilliance
Noun
  • There was a sort of lightness to the mood of a team that was still trying to absorb the news.
    — Paul Tenorio, New York Times, 5 July 2026
  • Hughes suggests a dusty pink or light beige to lift and soften the richness of the floor, while Alonso notes that cooler neutrals can offer a nice contrast, adding some lightness to the room.
    — Sophie Flaxman, Better Homes & Gardens, 2 July 2026
Definition of lightness

Browse Nearby Words

luminescing
luminosity
luminous
See all Nearby Words

Cite this Entry

“Luminosity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/luminosity. Accessed 7 Jul. 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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