Arc Lamp Definition

noun
An electric light in which a current traverses a gas between two incandescent electrodes and generates an arc that produces light.
American Heritage
A lamp in which brilliant light is produced by maintaining an arc between two electrodes, used as a spotlight, searchlight, etc.
Webster's New World

An electric arc arranged so as to produce useful light.

Wiktionary
Synonyms:
  • arc light

Other Word Forms of Arc Lamp

Noun

Singular:
arc lamp
Plural:
arc-lamps

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arc lamp