Definition of "halon" [halon]

• Any of several halocarbons used as fire-extinguishing agents. (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.

• "The compartment didn't have a halon gas fire suppression system."
• "The halon gas fire suppression systems required in the cargo compartments of passenger planes don't work on fires caused by lithium metal batteries."
• "There is also concern that if a large quantity of lithium-ion batteries was to ignite, it could overwhelm a halon suppression system."