Definition of "pilot light" [pi•lot light]

• A small jet of gas that is kept burning in order to ignite a gas burner, as in a stove. Also called pilot burner. (noun)
• See pilot lamp. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• ""My pilot light has gone out and needs to be relit, " she said."