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insulation
noun
in·su·la·tion
ˌin(t)-sə-ˈlā-shən
1
: material used in insulating
2
a
: the state of being insulated
b
: the action of insulating
Synonyms
Examples of insulation in a Sentence
These materials provide the insulation needed in cold weather.
she had grown up in such rural insulation that she'd never met anyone of a different race
Recent Examples on the Web
Gómez added a lot of retrofit work will be around insulation and meeting new energy efficiency standards.
—Jamie Hailstone, Forbes, 21 Jan. 2025
The difference is probably due to imperfect insulation.
—Rhett Allain, WIRED, 17 Jan. 2025
Popcorn ceilings can hide imperfections, such as nail pops and seams from installation, as well as provide sound insulation and noise reduction in the space and between the floors in multilevel homes, Guevara noted.
—Michael Gfoeller and David H. Rundell, Newsweek, 16 Jan. 2025
Hyundai's new global CEO is touting the Korean carmaker's expanding U.S. footprint as the best insulation against potential tariffs under a second Trump administration.
—Joann Muller, Axios, 15 Jan. 2025
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Word History
First Known Use
1798, in the meaning defined at sense 2b
Dictionary Entries Near insulation
Cite this Entry
“Insulation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/insulation. Accessed 2 Feb. 2025.
Kids Definition
insulation
noun
in·su·la·tion
ˌin(t)-sə-ˈlā-shən
1
: the act of insulating : the state of being insulated
2
: material used in insulating
Medical Definition
insulation
noun
in·su·la·tion
ˌin(t)-sə-ˈlā-shən
1
: the action of separating a conductor from conducting bodies by means of nonconductors so as to prevent transfer of electricity, heat, or sound
also
: the state resulting from such action
2
: material used to provide insulation
More from Merriam-Webster on insulation
Nglish: Translation of insulation for Spanish Speakers
Britannica English: Translation of insulation for Arabic Speakers
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