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arc light

noun
1.
Also, arc lamp. a lamp in which the light source is a high-intensity electric arc either between carbon rods in air or between metal electrodes in a xenon gas atmosphere enclosed in a quartz bulb.
2.
the light produced by such a lamp.
Compare carbon arc, xenon arc.
Origin
1875-1880
1875-80, Americanism
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for arc-lamp

arc light

noun
1.
a light source in which an arc between two electrodes, usually carbon, produces intense white illumination Also called arc lamp
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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