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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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 fluorescence Also indicative of a dense shroud of gas were signs of fluorescence and helium-absorbing radiation. — Robert Lea, Space.com, 10 June 2026 To further develop the engine, the team plans to investigate light-emitting materials with shorter fluorescence lifetimes and tunable emission bandwidths, which can further speed up data rates. — Prabhat Ranjan Mishra, Interesting Engineering, 23 May 2026 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 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 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
  • Under the glow of the coastal sun, past and present begin to quietly overlap.
    — Christopher Vourlias, Variety, 22 Aug. 2026
  • Sunlight bent and filtered through Earth's atmosphere leaks into the shadow, carrying the red-orange glow of every sunrise and sunset around the world.
    — Jamie Carter, Space.com, 21 Aug. 2026
Definition of glow
Noun
  • This stellar companion is apparently a luminous star that has three times the mass of the sun but is so close to the far brighter supergiant that its light had been hidden in the glare all this time.
    — Phil Plait, Scientific American, 14 Aug. 2026
  • Even beneath the stark, soulless glare of studio lights, the Valen is instantly arresting.
    — Tim Pitt, Robb Report, 14 Aug. 2026
Definition of glare
Noun
  • Cameramen raced around hectically setting up lights and checking shots as choreographers ran through fight sequences and a prop team worked out how to hoist a net that would later restrain a hostage.
    — Simone McCarthy, CNN Money, 22 Aug. 2026
  • The Crucial Differentiator Unlike intranasal light devices, Brainlume does not require any kind of insertion, nasal or otherwise.
    — William Jones, USA Today, 21 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
  • Artificial nighttime illumination can alter the behavior of migratory birds, insects and other nocturnal species that rely on moonlight and starlight to navigate, feed and reproduce, the coalition says.
    — Jean Lee, NBC news, 6 Aug. 2026
  • Adaptive matrix headlights, which can selectively dim portions of the beam to avoid dazzling other drivers while maintaining maximum illumination elsewhere, are theoretically the technological solution to the problem.
    — Matthew MacConnell, ArsTechnica, 3 Aug. 2026
Definition of illumination

Browse Nearby Words

flunky
fluorescence
fluorescences
See all Nearby Words

Cite this Entry

“Fluorescence.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fluorescence. Accessed 23 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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