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electric arc

noun
1.
arc (def 2).
Origin of electric arc
1880-1885
1880-85
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for electric arc
Historical Examples
  • It was gloomy and ill-lighted by the uncertain, even though dazzling, glow of one or two electric arc lights.

    With the Doughboy in France Edward Hungerford
  • Why are the shadows caused by an electric arc lamp so sharply defined?

    Physics Willis Eugene Tower
  • When an electric arc passes between certain metals like iron and copper a small bead is raised on their surfaces.

  • The exact temperature of the electric arc is not known with certainty.

    The Story of Great Inventions Elmer Ellsworth Burns
  • Unfortunately, however, the fuse is almost no protection against an electric arc.

    Common Science Carleton W. Washburne
  • In one of these volumes is found an account of a lecture-experiment by Davy which certainly is a description of the electric arc.

    Artificial Light M. Luckiesh
  • The greatest heat that has yet been produced artificially is that of the electric arc.

    The Story of Great Inventions Elmer Ellsworth Burns
  • In 1848 the first electric arc lamp used for general lighting was installed in Paris.

    Artificial Light M. Luckiesh
  • Curiously enough, this new rival, acetylene gas, had been brought into existence commercially by the electric arc itself.

  • Indeed, the sun is nearly four times brighter than the "crater," or brightest part of the electric arc.

    Astronomy David Todd
electric arc in Science
electric arc  
An electric current, often strong, brief, and luminous, in which electrons jump across a gap. Electric arcs across specially designed electrodes can produce very high heats and bright light, and are used for such purposes as welding and illumination in spotlights. Unwanted arcs in electrical circuits can cause fires. Lightning is a case of an electric arc between one cloud and the earth or another cloud, as are sparks caused by discharges of static electricity.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Word Value for electric

12
15
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