pilot light

noun

Definition of pilot light 

1 : a small permanent flame used to ignite gas at a burner

2 : an indicator light showing where a switch or circuit breaker is located or whether a motor is in operation or power is on

called also pilot lamp

Examples of pilot light in a Sentence

Recent Examples on the Web

The sound was the same as when a match touches the pilot light of a stove, only louder and deeper, a spasm of air expanding so fast and hard against the warehouse walls that the whole building shuddered and shook. Sean Flynn, Esquire, "The Perfect Fire," 9 Mar. 2017 The hot stove market, with 136 free agents still unemployed, barely has the flicker of a pilot light. Bob Nightengale, USA TODAY, "MLB's cold-hearted economics chill the hot stove, puts the freeze on elite players," 2 Jan. 2018 Once the regulator was repaired, all throughout the day Thursday, dozens of technicians went door to door, turning on gas and resetting pilot lights on appliances, heaters and furnaces. Vanesa Brashier, Houston Chronicle, "Leak in Cleveland attorney's home discovered when CenterPoint restored service," 18 Jan. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pilot light.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of pilot light

1881, in the meaning defined at sense 1

Keep scrolling for more

Learn More about pilot light

Share pilot light

Statistics for pilot light

Look-up Popularity

Time Traveler for pilot light

The first known use of pilot light was in 1881

See more words from the same year

Keep scrolling for more

More Definitions for pilot light

pilot light

noun

English Language Learners Definition of pilot light

: a small flame that is always burning in a gas stove, burner, etc., and that is used to light a larger flame

Keep scrolling for more

More from Merriam-Webster on pilot light

Rhyming Dictionary: Words that rhyme with pilot light

Spanish Central: Translation of pilot light

Nglish: Translation of pilot light for Spanish Speakers

Comments on pilot light

What made you want to look up pilot light? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a knickknack or trinket

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!