Definition of "pilot burner" [pilot burner]

• A small service burner, as in a boiler system, kept lighted to ignite main fires. (noun)
• See pilot light. (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.