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luminescence

[loo-muh-nes-uhns]

Origin

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noun

the emission of light not caused by incandescence and occurring at a temperature below that of incandescent bodies.

the light produced by such an emission.

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Origin:
1885–90; < Latin lūmin- (see lumen) + -escence

Related forms

lu·mi·nes·cent, adjective

non·lu·mi·nes·cence, noun

non·lu·mi·nes·cent, adjective

un·lu·mi·nes·cent, adjective

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Luminescence is always a great word to know.

So is callithumpian. Does it mean:

an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.

a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.

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Collins

World English Dictionary

luminescence (ˌluːmɪˈnɛsəns)

—n
	physics
	a. the emission of light at low temperatures by any process other than incandescence, such as phosphorescence or chemiluminescence
	b. the light emitted by such a process

[C19: from Latin lūmen light]

lumi'nescent

—*adj*

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline

Word Origin & History

luminescence

1889, from luminescent.

American Heritage

Medical Dictionary

luminescence lu·mi·nes·cence (l&oomacr;'mə-něs'əns)
n.

The emission of light that does not derive energy from the temperature of the emitting body, as in fluorescence and bioluminescence.
The light so emitted.

American Heritage

Science Dictionary

luminescence

'mə-něs'əns) Pronunciation Key

The emission of light as a result of the excitation of atoms by energy other than heat. Bioluminescence, fluorescence, and phosphorescence are examples of luminescence that can be produced by biological or chemical processes.
The light produced in this way.

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