fluo·res·cent | \flu̇-ˈre-sᵊnt, flȯ-\

Definition of fluorescent 

1 : having or relating to fluorescence

2 : bright and glowing as a result of fluorescence fluorescent inks broadly : very bright in color

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Other Words from fluorescent

fluorescent noun
fluorescently adverb

Examples of fluorescent in a Sentence

Recent Examples on the Web

With its tiled floor, fluorescent lighting, and tightly packed merchandise, the store could just as easily be in a suburban strip mall. Emily Williams, BostonGlobe.com, "Business booming at dollar store on Catholic church site," 30 June 2018 The scene drips with stereotypical evil, particularly its use of the creepiest fluorescent lighting imaginable, and it's made doubly hilarious by the average selling price of each dinosaur: roughly $15 million. Sam Machkovech, Ars Technica, "Jurassic World: Fallen Kingdom review: This nonsense has gone full Sharknado," 22 June 2018 The exhibition offers such examples as a Tiffany Peacock Vase (c. 1901) and a 19th-century Indian fabric woven with beetle wing casings for iridescence, as well as 21st-century Nike running shoes in fluorescent green. Judith H. Dobrzynski, WSJ, "‘Saturated: The Allure and Science of Color’ Review: Vibrant From Any Angle," 26 May 2018 The white blood cells in the semen, known to be transmitters for HIV, were dyed fluorescent green. Zoë Schlanger, Newsweek, "Plantibodies Could Pave the Road to Wellness," 15 Dec. 2014 O'so handed out sample of Brawndo, a sour blond ale with a touch of Gatorade that turned the unique beer a fluorescent green. Kathy Flanigan, Milwaukee Journal Sentinel, "Start making pretzel necklaces now: Beer festival season is in full pour," 9 July 2018 The town will continue to host recycling for household batteries and fluorescent bulbs in the front hall of the Porter Public Works building, Brueckheimer said. Amy Lavalley, Post-Tribune, "Electronics drop-off locations reduced by one in Porter County," 1 May 2018 Turquoise ovals crowd a ring of fluorescent magenta flesh in another image—a section of intestines inside a zebrafish. Marissa Fessenden, Smithsonian, "Scientific Images Make Dazzling Art In a Duke University Exhibit," 12 July 2018 The lighting tends to be nicer, less harsh and fluorescent, than an office, and the music makes for a nice ambience. Nellie Bowles, The Seattle Times, "Sorry, power-lunchers — these tables are reserved for drop-in workers," 9 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fluorescent.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of fluorescent

1853, in the meaning defined at sense 1

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Last Updated

1 Sep 2018

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Time Traveler for fluorescent

The first known use of fluorescent was in 1853

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More Definitions for fluorescent



English Language Learners Definition of fluorescent

: producing light when electricity flows through a tube that is filled with a type of gas

: very bright


fluo·res·cent | \flu̇-ˈre-sᵊnt, flō-\

Kids Definition of fluorescent

1 : giving out visible light when exposed to external radiation a fluorescent substance a fluorescent coating

2 : producing visible light by means of a fluorescent coating a fluorescent bulb

3 : extremely bright or glowing fluorescent colors

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Comments on fluorescent

What made you want to look up fluorescent? Please tell us where you read or heard it (including the quote, if possible).


exaggeratedly or childishly emotional

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