fluorescence

noun

flu̇-ˈre-sᵊn(t)s How to pronounce fluorescence (audio)
Definition of fluorescencenext
as in glow
the steady giving off of the form of radiation that makes vision possible studied the fluorescence of certain elements

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 fluorescence For a time, Schoenbrun’s new film plays things relatively straight, eschewing the bright colors and black-light fluorescence of the non-binary director’s first two films. — Damon Wise, Deadline, 12 May 2026 To map the molecular structure of the scorpions’ weaponry, the researchers used high-resolution scanning electron microscopy coupled with micro-X-ray fluorescence imaging. — Jacek Krywko, ArsTechnica, 1 May 2026 The luciferase catalyzes the oxidation of luciferin, producing blue light, which GFP then absorbs and re-emits as green fluorescence. — Samantha Agate, Charlotte Observer, 23 Apr. 2026 The Scripps Research team used minimal fluorescence photon flux super-resolution microscopy to explore the difference between the two proteins. — Noah Lyons, San Diego Union-Tribune, 9 Apr. 2026 See All Example Sentences for fluorescence
Recent Examples of Synonyms for fluorescence
  1. glow
  2. glare
  3. light
  4. gleam
  5. luminescence
  6. illumination
Noun
  • Even Chalamet accepted money to do a commercial for prediction market Kalshi in the glow of his beloved New York Knicks winning the NBA championship.
    — Marcus Jones, IndieWire, 31 July 2026
  • When only a small number of holes arrive from the infrared detector because of dim illumination or long-wavelength photons, they are all captured by the red layer, and the device emits a low-brightness red glow.
    — Jacek Krywko, ArsTechnica, 31 July 2026
Definition of glow
Noun
  • All of this has happened without the glare of the national spotlight and amid muted public outcry, as local and state leaders have largely cooperated with the federal government.
    — Kat Lonsdorf, NPR, 27 July 2026
  • In a side-by-side comparison, the Z Fold 8 Ultra is far easier to view under direct lighting, thanks to its new glare-reducing feature.
    — Eric Zeman, PC Magazine, 22 July 2026
Definition of glare
Noun
  • As the balloon rose into the evening sky, riders could look out across the gardens while the setting sun covered the landscape in warm light.
    — Sophia Buonpane, Kansas City Star, 1 Aug. 2026
  • Plants and animals keenly sense the diminishing light, which acts as a master biological clock that triggers changes such as migration, shifting hormone levels and winter coat growth.
    — Charles Seabrook, AJC.com, 1 Aug. 2026
Definition of light
Noun
  • Meanwhile, Tucuma-seed and buriti oils soften the skin and boost its radiance for a subtle, youthful gleam.
    — Jenny Berg, Vogue, 17 July 2026
  • In other words, there is no recapturing the mythological—and curiously innocent—gleam of earlier World Cup eras.
    — Anthony Lane, New Yorker, 17 July 2026
Definition of gleam
Noun
  • Her exhibit design vision, envisaged in partnership with partner Paul Cournet and his studio Cloud, incorporated luminescence and hues that radiated from the gems, dictating the color palette of purple, green, yellow and pink.
    — Sofia Celeste, Footwear News, 25 June 2026
  • In a new study published in PLOS, researchers analyzed 161 fossils with a new rapid and non-destructive protocol, based on stimulating the bone remains with an external energy source, called luminescence.
    — Maria Mocerino, Interesting Engineering, 6 June 2026
Definition of luminescence
Noun
  • Those wanting extra illumination can step up to the Onn Outdoor Floodlight Camera Hardwired.
    — Paul Lamkin, Forbes.com, 28 July 2026
  • Jonathan Parker, an MIT Sloan School of Management professor of financial economics, said that how assets—in this case businesses—change hands can sometimes offer illumination of broader economic patterns.
    — Sasha Rogelberg, Fortune, 15 July 2026
Definition of illumination

Browse Nearby Words

flunky
fluorescence
fluorescences
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Cite this Entry

“Fluorescence.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fluorescence. Accessed 3 Aug. 2026.

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More from Merriam-Webster on fluorescence

Nglish: Translation of fluorescence for Spanish Speakers

Britannica.com: Encyclopedia article about fluorescence

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