fluorescence
noun
fluo·res·cence
flu̇-ˈre-sᵊn(t)s 
flȯ-
: luminescence that is caused by the absorption of radiation at one wavelength followed by nearly immediate reradiation usually at a different wavelength and that ceases almost at once when the incident radiation stops
also
: the radiation emitted compare phosphorescence
Synonyms
Examples of fluorescence in a Sentence
studied the fluorescence of certain elements
Recent Examples on the Web
Later in the Archimedes Palimpsest project, researchers used x-ray fluorescence to bring out iron in the older ink.
—
Danny Robb, JSTOR Daily, 16 Oct. 2024
Conservators noticed that its two wooden panels had shifted, and ultraviolet fluorescence revealed nicotine stains.
—Ella Feldman, Smithsonian Magazine, 4 Sep. 2024
In most fluorometers, one pair of lenses focuses the light onto the sample, while another pair focuses the resulting fluorescence onto an integrated sensor.
—Ben Coxworth, New Atlas, 12 Aug. 2024
Researchers bombard samples with x-rays to trigger x-ray fluorescence (XRF) that reveals chemical composition.
—Bymichael Price, science.org, 5 Aug. 2024
See all Example Sentences for fluorescence 
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Danny Robb, JSTOR Daily, 16 Oct. 2024
Conservators noticed that its two wooden panels had shifted, and ultraviolet fluorescence revealed nicotine stains.
—Ella Feldman, Smithsonian Magazine, 4 Sep. 2024
In most fluorometers, one pair of lenses focuses the light onto the sample, while another pair focuses the resulting fluorescence onto an integrated sensor.
—Ben Coxworth, New Atlas, 12 Aug. 2024
Researchers bombard samples with x-rays to trigger x-ray fluorescence (XRF) that reveals chemical composition.
—Bymichael Price, science.org, 5 Aug. 2024
See all Example Sentences for fluorescence
Dictionary Entries Near fluorescence
Cite this Entry
“Fluorescence.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fluorescence. Accessed 1 Dec. 2024.
Copy CitationMedical Definition
fluorescence
noun
flu·o·res·cence
-ˈes-ᵊn(t)s
: luminescence that is caused by the absorption of radiation at one wavelength followed by nearly immediate reradiation usually at a different wavelength and that ceases almost immediately when the incident radiation stops
also
: the radiation emitted
fluorescently
adverb
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