pilot light

English Thesaurus

1. small auxiliary gas burner that provides a flame to ignite a larger gas burner (noun.artifact)

hypernym	:	gas burner, gas jet,
definition	:	burner such that combustible gas issues from a nozzle to form a steady flame (noun.artifact)

2. indicator consisting of a light to indicate whether power is on or a motor is in operation (noun.artifact)

hypernym	:	indicator,
definition	:	a device for showing the operating condition of some system (noun.artifact)