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electric arc

arc (def 2).
Origin of electric arc
First recorded in 1880-85 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for electric arc
Historical Examples
  • Why are the shadows caused by an electric arc lamp so sharply defined?

    Physics Willis Eugene Tower
  • They were approaching the electric arc that lighted the entrance to the beach.

    A Singular Life Elizabeth Stuart Phelps
  • What difficulties are to be encountered in applying the electric arc to welding?

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

    The Story of Great Inventions Elmer Ellsworth Burns
  • There is no hotter object that we can obtain than that of the electric arc.

  • "With the electric arc, sir," answered the chemist, mopping his brow.

    The Air Trust George Allan England
  • The highest heat which we are able to produce artificially, is about 10,000 degrees by means of the electric arc.

    Motors James Slough Zerbe
  • I noticed that I could take a faidon right out of an electric arc and it wouldn't even be warm.

    Skylark Three Edward Elmer Smith
  • 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
  • In 1848 the first electric arc lamp used for general lighting was installed in Paris.

    Artificial Light M. Luckiesh
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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