pilot light

See more synonyms for pilot light on Thesaurus.com
noun
  1. Also called pilot, pilot burner. a small flame kept burning continuously, as in a gas stove or furnace, to relight the main gas burners whenever necessary or desired.
  2. pilot lamp.

Origin of pilot light

First recorded in 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for pilot light

burner, element, jet

British Dictionary definitions for pilot light

pilot light

noun
  1. a small auxiliary flame that ignites the main burner of a gas appliance when the control valve opens
  2. a small electric light used as an indicator
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012