intumescent

adjective
in·​tu·​mes·​cent | \ ˌin-tü-ˈme-sᵊnt How to pronounce intumescent (audio) , -tyü- \

Definition of intumescent

of paint
: swelling and charring when exposed to flame

First Known Use of intumescent

1953, in the meaning defined above

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The first known use of intumescent was in 1953

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Cite this Entry

“Intumescent.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/intumescent. Accessed 28 January 2020.

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More Definitions for intumescent

intumescent

adjective
in·​tu·​mes·​cent | \ -ᵊnt How to pronounce intumescent (audio) \

Medical Definition of intumescent

: marked by intumescence

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