fluorescent

F4L1U1O1R1E1S1C3E1N1T1
UK/ˌflʊəˈɹɛsənt/US/flɔˈɹɛsənt/

adjective

Of or relating to fluorescence.

“Her shirt was fluorescent orange.”

Similar
lightcolorfulcolourfulfluorescent fixture
CommonScrabble 16

Meanings

adjectivefluorescent (comparative more fluorescent, superlative most fluorescent)

comparative more fluorescent · superlative most fluorescent

  1. Of or relating to fluorescence.
  2. Exhibiting or produced by fluorescence.

    The fluorescent plants shimmered in the darkness.

  3. Emitting visible light as a result of the excitation of phosphors by ultraviolet photons produced by the passage of an electrical current through an inert gas infused with mercury.

    The quality of fluorescent lighting technology has improved dramatically in recent years.

    3 more examples

    The shed, a steel-framed structure with a single-span roof devoid of intermediate support, is exceptionally well-lit by continuous glazing on the roof and along much of the sides, while there is fluorescent roof lighting for night work.

    1960 July 28, “New Eastern Region diesel depot at Finsbury Park”, in Trains Illustrated, pages 422–423

    Rather than burning out as incandescent bulbs do, L.E.D.’s light output dims over tens of thousands of hours. L.E.D.’s are also more resistant to vibration than incandescents or screw-in fluorescent bulbs, and do not flicker or hum.

    2007 March 1, Matthew L. Wald, “Room to Improve”, in The New York Times, archived from the original on 03 Jun 2017

    Then they backed the membrane with a gel matrix containing a perfluorocarbon (PFC) propellant and fluorescent "nanobullets" about a micron wide, and hit it with ultrasound.

    2016 January 14, Jessica Hall, “Nanoengineers build 'microcannons' that fire light-up bullets filled with drugs”, in ExtremeTech
  4. Vivid, as if fluorescing; neon.

    Her shirt was fluorescent orange.

nounfluorescent (plural fluorescents)

plural fluorescents

  1. A fluorescent light.

    The fluorescents hummed day and night.

    1 more example

    Compact fluorescents are typically rated at 7,500 to 10,000 hours, and incandescents at about 1,500 hours.

    2007 March 1, Matthew L. Wald, “Room to Improve”, in The New York Times, archived from the original on 03 Jun 2017

Synonyms & antonyms

adjectiveemitting light during exposure to radiation from an external source

Similar

adjectivebrilliantly colored and apparently giving off light

nouna lighting fixture that uses a fluorescent lamp

Similar
fluorescent fixture
Broader
lighting fixture
Also see

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*bʰel-
  2. Proto-Indo-European*bʰlewH-
  3. Proto-Indo-European*bʰluH-yé-ti?
  4. Latinfluō
  5. Latinfluor
  6. Englishfluor
  7. Englishfluorite
  8. Middle Low Germanspar
  9. Old Englishspærstān
  10. Middle Englishsparston
  11. Englishsparstonebf.
  12. Englishspar
  13. Englishfluorspar
  14. Englishfluorescencebf.
  15. Englishfluoresce
  16. Englishfluorescent

From fluoresce + -ent.

Full word history & related roots →

Translations

Catalan fluorescent
  • fluorescentof or relating to fluorescence
Czech fluorescenční, světélkující
  • fluorescenčníof or relating to fluorescence
  • světélkujícíof or relating to fluorescence
Danish fluorescerende
  • fluorescerendeof or relating to fluorescence
Finnish fluoresenssi-, fluoresoiva
  • fluoresenssi-of or relating to fluorescence
  • fluoresoivaof or relating to fluorescence
French fluorescent
  • fluorescentof or relating to fluorescence
German fluoreszierend, fluoreszent
  • fluoreszierendof or relating to fluorescence
  • fluoreszentof or relating to fluorescence
Indonesian fluoresen
  • fluoresenof or relating to fluorescence
Italian fluorescente
  • fluorescenteof or relating to fluorescence
Japanese 蛍光
  • 蛍光 (keikō)of or relating to fluorescence
Polish fluorescencyjny
  • fluorescencyjnyof or relating to fluorescence
Portuguese fluorescente
  • fluorescenteof or relating to fluorescence
Russian флуоресце́нтный, флюоресце́нтный
  • флуоресце́нтный (fluorescéntnyj)of or relating to fluorescence
  • флюоресце́нтный (fljuorescéntnyj)of or relating to fluorescence
Spanish fluorescente
  • fluorescenteof or relating to fluorescence
Swedish fluorescerande
  • fluorescerandeof or relating to fluorescence
Tagalog magilaw, gilawin
  • magilawof or relating to fluorescence
  • gilawinof or relating to fluorescence
Ukrainian флуоресце́нтний, флюоресце́нтний
  • флуоресце́нтний (fluorescéntnyj)of or relating to fluorescence
  • флюоресце́нтний (fljuorescéntnyj)of or relating to fluorescence

Rhymes & wordplay

Rhymes with fluorescent

All rhymes →

Sounds the same

florescentin some pronunciationsflorescentin some pronunciations
Cite this entry
APA

fluorescent. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/fluorescent

MLA

“fluorescent.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/fluorescent. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “fluorescent,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/fluorescent.

Source: fluorescent on Wiktionary, CC BY-SA 4.0.