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arc light

American  
[ahrk lahyt] / ˈɑrk ˌlaɪt /

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.


arc light British  

noun

  1. Also called: arc lamp.  a light source in which an arc between two electrodes, usually carbon, produces intense white illumination

"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

Etymology

Origin of arc light

An Americanism dating back to 1875–80

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

When hydrogen is squirted through a tungsten arc light, hydrogen molecules explode into hydrogen atoms.

From Time Magazine Archive

The fluctuating arc light shines through a perforated, rotating disk upon a ground glass screen and the spectators on the other side of the screen can see their pictures.

From Time Magazine Archive

A Russian, Paul Jablochkov, invented the arc light in 1876; Thomas Edison the incandescent light in 1879.

From Time Magazine Archive

The whole scene had a peculiar hue as if illuminated by an arc light.

From Time Magazine Archive

In a garbage can under an arc light I found a clean corrugated paper carton and packed my city clothes.

From "Travels with Charley in Search of America" by John Steinbeck