luminescence
noun
lu·mi·nes·cence
ˌlü-mə-ˈne-sᵊn(t)s 
: the low-temperature emission of light (as by a chemical or physiological process)
also
: light produced by luminescence
Examples of luminescence in a Sentence
the luminescence of the watch
we could see inside the cave even without a flashlight because of the luminescence coming from some of the fungus on the walls
Recent Examples on the Web
Highlighter applied to the inner corners of the eyes and just above the Cupid’s bow offers your look an angelic luminescence.
—
Calin Van Paris, Vogue, 12 Aug. 2025
Stratus clouds are gray layers, sometimes with variances in their luminescence.
—Noel Kirkpatrick, Treehugger, 7 Aug. 2025
Rosas and cinematographer Paulo Menezes shoot Lisbon’s streetlife, nightlife and even its quiet cemetery parks with the breezy, sauntering flow of Eric Rohmer’s Paris, and occasionally the hot-to-the-touch luminescence of Wong Kar-wai’s Hong Kong.
—Guy Lodge, Variety, 10 July 2025
Rabil’s luminescence has shown few signs of dimming, which doesn’t surprise former Johns Hopkins teammate and lacrosse icon Kyle Harrison.
—Edward Lee, Baltimore Sun, 20 June 2025
See All Example Sentences for luminescence
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Calin Van Paris, Vogue, 12 Aug. 2025
Stratus clouds are gray layers, sometimes with variances in their luminescence.
—Noel Kirkpatrick, Treehugger, 7 Aug. 2025
Rosas and cinematographer Paulo Menezes shoot Lisbon’s streetlife, nightlife and even its quiet cemetery parks with the breezy, sauntering flow of Eric Rohmer’s Paris, and occasionally the hot-to-the-touch luminescence of Wong Kar-wai’s Hong Kong.
—Guy Lodge, Variety, 10 July 2025
Rabil’s luminescence has shown few signs of dimming, which doesn’t surprise former Johns Hopkins teammate and lacrosse icon Kyle Harrison.
—Edward Lee, Baltimore Sun, 20 June 2025
See All Example Sentences for luminescence
Cite this Entry
“Luminescence.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/luminescence. Accessed 4 Nov. 2025.
Copy CitationKids Definition
luminescence
noun
lu·mi·nes·cence
ˌlü-mə-ˈnes-ᵊn(t)s
: the giving off of light at low temperatures especially as part of a chemical process (as of the body)
also
: such light
Medical Definition
luminescence
noun
lu·mi·nes·cence
ˌlü-mə-ˈnes-ᵊn(t)s
: the low-temperature emission of light produced especially by physiological processes (as in the firefly), by chemical action, by friction, or by electrical action
also
: light produced by luminescence
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