an electric arc between two carbon electrodes, used mainly for lighting, as in an arc light for a motion-picture projector, or for intense heating, as in the cutting and welding of metals.
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Origin of carbon arc
First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for carbon arc
After many experiments with platinum, he abandoned that material in favor of the carbon-arc in vacuo.
British Dictionary definitions for carbon arc
- an electric arc produced between two carbon electrodes, formerly used as a light source
- (as modifier)carbon-arc light
- an electric arc produced between a carbon electrode and material to be welded
- (as modifier)carbon-arc welding
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