WordReference Random House Unabridged Dictionary of American English © 2026
arc′ light′, 
    1. Cinema, ElectricityAlso, arc′ lamp′. a lamp in which the light source is a high-intensity electric arc either between carbon rods in air or between metal electrodes in a xenon gas atmosphere enclosed in a quartz bulb.
    2. Cinema, Electricitythe light produced by such a lamp. Cf. carbon arc, xenon arc. 
    • 1875–80, American.

Collins Concise English Dictionary © HarperCollins Publishers::
arc light n
  1. a light source in which an arc between two electrodes, usually carbon, produces intense white illuminationAlso called: arc lamp
'arc light' also found in these entries (note: many are not synonyms or translations):
carbon - klieg light - ashcan - carbon arc - xenon arc

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


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