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electric arc

noun

arc(def 2).

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Words nearby electric arc

electra complex, electra paradox, electress, electret, electric, electric arc, electric arc welding, electric blanket, electric blue, electric catfish, electric cell

Origin of electric arc

First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for electric arc

  • This is used for electric-arc carbons and for other purposes.

    Artificial Light|M. Luckiesh

Science definitions for electric arc

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.