lu·mi·nes·cence

(lo͞o′mə-nĕs′əns)

1. The emission of light that does not derive energy from the temperature of the emitting body, as in phosphorescence, fluorescence, and bioluminescence. Luminescence is caused by chemical, biochemical, or crystallographic changes, the motions of subatomic particles, or radiation-induced excitation of an atomic system.

2. The light so emitted.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

luminescence

(ˌluːmɪˈnɛsəns)

(General Physics) 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]

ˌlumiˈnescent adj

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

lu•mi•nes•cence

(ˌlu məˈnɛs əns)

n.

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

2. the light produced by such an emission.

[1885–90; < Latin lūmin- light + -escence]

lu`mi•nes′cent, adj.

lu·mi·nes·cence

(lo͞o′mə-nĕs′əns)

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

2. The light produced in this way.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

luminescence

Light emission from a substance caused by an effect other than heat. Fluorescence and phosphorescence are forms of luminescence.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun	1.	luminescence - light not due to incandescence; occurs at low temperatures light, visible light, visible radiation - (physics) electromagnetic radiation that can produce a visual sensation; "the light was filtered through a soft glass window" bioluminescence - luminescence produced by physiological processes (as in the firefly) chemiluminescence - luminescence resulting from a chemical reaction as the oxidation of luciferin in fireflies
	2.	luminescence - light from nonthermal sources glow brightness level, luminance, luminosity, luminousness, brightness, light - the quality of being luminous; emitting or reflecting light; "its luminosity is measured relative to that of our sun"

Translations

luminescenza

luminescence

[ˌluːmɪˈnesns] N → luminescencia f

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

luminescence

n → Lumineszenz f (spec), → Leuchten nt

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

lu·mi·nes·cence

n. luminosidad, emisión de luz sin producción de calor.

English-Spanish Medical Dictionary © Farlex 2012

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References in periodicals archive

Sun Chemical's Security Division will operate under the brand name of Luminescence, the manufacturer of security and brand protection inks that Sun Chemical acquired earlier this year.

PAUL COOPER APPOINTED TO LEAD SUN CHEMICAL SECURITY DIVISION

The final type is called the luminescence process, in which scintillation photons are emitted.

Inorganic scintillating materials and scintillation detectors

Gadolinium vanadate (GdV[O.sub.4]) is a very important host for the luminescence of rare earth activators which find applications in the high-power solid state lasers, X-ray medical radiography, energy-saving fluorescent lamps, artificial production of light, other display devices [5-11], and temperature sensing [4].

Orange-Reddish Light Emitting Phosphor GdV[O.sub.4]:[Sm.sup.3+] Prepared by Solution Combustion Synthesis

In this work, we propose a novel luminescence method for the quantification of neonicotinoids in environmental waters.

Enhanced Quenching Effect of Neonicotinoid Pesticides on Time-Resolved Terbium Luminescence in Presence of Surfactants

This research originates from earlier studies of the authors on the Mg-Fe micas composition (Nebera et al., 2012) and the luminescence of feldspars (Boroznovskaya et al., 2012).

LUMINESCENCE OF ROCK-FORMING QUARTZ OF THE GRANITOIDS FROM THE KOLYVAN-TOMSK FOLDED BELT IN RELATION TO FACIES FEATURES OF MASSIF FORMATION

These findings make the studies of X-ray conductivity (XRC) and X-ray luminescence (XRL) in ZnSe single crystals topical.

The Dependencies of X-Ray Conductivity and X-Ray Luminescence of ZnSe Crystals on the Excitation Intensity

Such pc-LED sources generate white light due to colour mixing of blue radiation from the LED chip with yellow luminescence of [Ce.sup.3+] ions, which is due to intercon-figurational 5d--4f transitions.

Silicate apatite phosphors for pc-LED applications

A technique called luminescence dating was used to date the ancient tools which were found in a rock shelter at the bottom of a cliff, on the edge of a sandy savannah plain some 300 km (186 miles) east of Darwin.

Find could rewrite Australian human history

For this method, the measurement of the oxygen reduction in a hermetically closed Erlenmeyer is based on the effect of dynamic luminescence principle.

ALBIS AND FRAUNHOFER INSTITUTE DEVELOP SIMPLE METHOD TO MEASURE FILMS' OXYGEN ABSORPTION

Presenting findings from their research on lanthanide glasses and materials, physicists and material scientists cover tunable and white light generation in lanthanide doped novel fluorophosphate glasses, lanthanides co-doped phosphate glasses for broadband applications, lanthanum doped borophosphate glasses for nuclear waste immobilization, crystallization studies of cerium containing iron borophosphate glasses/glass-ceramics, spectroscopic properties and energy transfer parameters of Nd3+ and Sm3+ doped lithium borate glasses, the relationship between the structural modification and luminescence efficiencies of ZnF2-Mo-TeO2 glasses doped with Ho3+ and Er3+ ions, and luminescence and energy transfer phenomena in lanthanide ions doped phosphor and glassy materials.

Current Trends on Lanthanide Glasses and Materials