fluoresce

verb

fluo·​resce flu̇-ˈres How to pronounce fluoresce (audio)
flȯ-
fluoresced; fluorescing

intransitive verb

: to produce, undergo, or exhibit fluorescence
fluorescer noun

Examples of fluoresce in a Sentence

Recent Examples on the Web
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.
Even the skin on their feet and the insides of their mouths would fluoresce in blue and UV light. Elizabeth Rayne, Ars Technica, 23 Feb. 2025 After all, human teeth fluoresce under ultraviolet light, but that doesn’t seem to help us in any measurable way. Jason Bittel, New York Times, 12 Feb. 2025 Just two days after the treatment, the lung tissue started to fluoresce. John Timmer, Ars Technica, 13 June 2024 Another species, a deep-sea scarlet frogfish, fluoresce in a way that matches the surroundings, suggesting that it may be used for camouflage, researchers said. Irene Wright, Miami Herald, 13 June 2024 See All Example Sentences for fluoresce

Word History

Etymology

back-formation from fluorescence

First Known Use

1874, in the meaning defined above

Time Traveler
The first known use of fluoresce was in 1874

Browse Nearby Words

Cite this Entry

“Fluoresce.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fluoresce. Accessed 9 Mar. 2025.

Kids Definition

fluoresce

verb
flu·​o·​resce
ˌflu̇(-ə)r-ˈes
fluoresced; fluorescing
: to produce, exhibit, or be exposed to fluorescence

Medical Definition

fluoresce

intransitive verb
flu·​o·​resce ˌflu̇(-ə)r-ˈes How to pronounce fluoresce (audio) flōr- How to pronounce fluoresce (audio) flȯr- How to pronounce fluoresce (audio)
fluoresced; fluorescing
: to produce, undergo, or exhibit fluorescence
fluorescer noun
Last Updated: - Updated example sentences
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