WordReference Random House Unabridged Dictionary of American English © 2025
car′bon arc′, 
  1. Cinema, Electricityan 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.
  • 1905–10

Collins Concise English Dictionary © HarperCollins Publishers::
carbon arc
  1. an electric arc produced between two carbon electrodes, formerly used as a light source
  2. an electric arc produced between a carbon electrode and material to be welded
'carbon arc' also found in these entries (note: many are not synonyms or translations):
arc light - carbon - klieg light - praseodymium - samarium

Forum discussions with the word(s) "carbon arc" in the title:


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