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
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
Best practices for checking insulation quality is to read user reviews and consider how the bag seals.
—
Bestreviews, Mercury News, 9 Sep. 2025
Another reason to prune later is because the dead foliage benefits the roots by providing insulation during the winter.
—Karen Brewer Grossman, Southern Living, 5 Sep. 2025
The collapse left her living room blanketed in drywall pieces and insulation bits and damaged some of her possessions.
—Nathan Pilling, Kansas City Star, 5 Sep. 2025
Now that beta test vehicles have been created, the company will use those to validate ride quality, handling, braking, thermodynamics, aerodynamics and sound insulation calibrations and engineering.
—Eileen Falkenberg-Hull, MSNBC Newsweek, 4 Sep. 2025
See All Example Sentences for insulation
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Bestreviews, Mercury News, 9 Sep. 2025
Another reason to prune later is because the dead foliage benefits the roots by providing insulation during the winter.
—Karen Brewer Grossman, Southern Living, 5 Sep. 2025
The collapse left her living room blanketed in drywall pieces and insulation bits and damaged some of her possessions.
—Nathan Pilling, Kansas City Star, 5 Sep. 2025
Now that beta test vehicles have been created, the company will use those to validate ride quality, handling, braking, thermodynamics, aerodynamics and sound insulation calibrations and engineering.
—Eileen Falkenberg-Hull, MSNBC Newsweek, 4 Sep. 2025
See All Example Sentences for insulation
Cite this Entry
“Insulation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/insulation. Accessed 14 Sep. 2025.
Copy CitationKids 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
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