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
Proper cleaning will help maintain the loft of the insulation.
—
Mary Marlowe Leverette, Southern Living, 31 Jan. 2025
For more than a decade, the team worked inside a tent-like structure without insulation that was originally meant to be temporary.
—Taylor Lyons, Baltimore Sun, 29 Jan. 2025
Best are synthetic fabrics and insulations like polyester and nylon, which only absorb around 0.4 to four percent of their weight in water, respectively.
—Wes Siler, Outside Online, 29 Jan. 2025
Maintenance, good temperature management, and proper insulation are all important ways to make sure your furnace continues working as temperatures dip.
—Joel Thayer, Newsweek, 27 Jan. 2025
See all Example Sentences for insulation 
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Mary Marlowe Leverette, Southern Living, 31 Jan. 2025
For more than a decade, the team worked inside a tent-like structure without insulation that was originally meant to be temporary.
—Taylor Lyons, Baltimore Sun, 29 Jan. 2025
Best are synthetic fabrics and insulations like polyester and nylon, which only absorb around 0.4 to four percent of their weight in water, respectively.
—Wes Siler, Outside Online, 29 Jan. 2025
Maintenance, good temperature management, and proper insulation are all important ways to make sure your furnace continues working as temperatures dip.
—Joel Thayer, Newsweek, 27 Jan. 2025
See all Example Sentences for insulation
Dictionary Entries Near insulation
Cite this Entry
“Insulation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/insulation. Accessed 16 Feb. 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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