Pilot lamp or Pilot light. Elec.
1. A small incandescent telltale lamp on a dynamo or battery circuit to show approximately by its brightness the voltage of the current.
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pilot light
n 1: small auxiliary gas burner that provides a flame to ignite a
larger gas burner [syn: pilot burner, pilot]
2: indicator consisting of a light to indicate whether power is
on or a motor is in operation [syn: pilot lamp, indicator
lamp]