hardener
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hard·en·er
(här′dn-ər)n.
One that hardens, especially a substance added to varnish or paint to give it a harder surface or finish.
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.
hardener
(ˈhɑːdənə)n
1. a person or thing that hardens
2. (Dyeing) a substance added to paint or varnish to increase durability
3. (Chemistry) an ingredient of certain adhesives and synthetic resins that accelerates or promotes setting
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
hard•en•er
(ˈhɑr dn ər)n.
1. one that hardens.
2. a substance, esp. one mixed with paint, that makes a finish hard.
[1605–15]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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