fluorescent

adjective

fluo·​res·​cent flu̇-ˈre-sᵊnt How to pronounce fluorescent (audio)
flȯ-
1
: having or relating to fluorescence
2
: bright and glowing as a result of fluorescence
fluorescent inks
broadly : very bright in color
fluorescent noun
fluorescently adverb

Examples of fluorescent in a Sentence

Recent Examples on the Web
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Ultra-high-resolution cameras were used to capture images of how this fluorescent line moved, bent, and twisted through the air. Mrigakshi Dixit, Interesting Engineering, 12 Nov. 2025 The colors reflect the message, too, with fluorescent mint green, ice lavender and striking marine Earth blue. Chris Gardner, HollywoodReporter, 12 Nov. 2025 The split-level house had a game room loft, a fluorescent pink bathroom, and a swimming pool. Mekita Rivas, Architectural Digest, 7 Nov. 2025 The buzz of a fluorescent light in a gas station bathroom. Jd Barker, Rolling Stone, 3 Nov. 2025 See All Example Sentences for fluorescent

Word History

First Known Use

1853, in the meaning defined at sense 1

Time Traveler
The first known use of fluorescent was in 1853

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Cite this Entry

“Fluorescent.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fluorescent. Accessed 16 Nov. 2025.

Kids Definition

fluorescent

adjective
flu·​o·​res·​cent
ˌflu̇(-ə)r-ˈes-ᵊnt
1
: having or relating to fluorescence
2
: very bright in color
fluorescent markers

More from Merriam-Webster on fluorescent

Last Updated: - Updated example sentences
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