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A substance that is applied to fabric, wood, or other material in order to make it resistant to catching fire. Also called fire retardant.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Building) (of a substance or material) having the effect of slowing down the spread of fire
2. (Furniture) (of a substance or material) having the effect of slowing down the spread of fire
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
not subject to quick or easy burning esp. through chemical treatment: flame-retardant curtains.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.