arc lamp
noun1
An electric arc arranged so as to produce useful light.
- This led him to the station; and the square in front of it, vivid with arc-lamps, noisy with the yellow trams that seemed to cross it in all directions, made him laugh aloud with joy.1915, W. Somerset Maugham, chapter 40, in Of Human Bondage:
- The vague and careless rain looked like threads of gossamer silver passing across the light of the arc-lamps.1922, Michael Arlen, “Ep./1/2”, in “Piracy”: A Romantic Chronicle of These Days: