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
Of course, the materials choice could make this quite a hot box in the summer months, so Elsewhere Pods has installed a mini-split air-conditioning system and insulation to mitigate this, plus the glass is double-glazed.
—
Adam Williams
june 01, New Atlas, 1 June 2025
Even feathers, which seem delicate, are made of keratin and are engineered for both insulation and lift without adding unnecessary bulk.
—Scott Travers, Forbes.com, 31 May 2025
What to look for in quality dirt bike gloves
Components, size and fit
The key components of a dirt bike glove are the padding, air vents, insulation and reinforcements.
—Bestreviews, Chicago Tribune, 26 May 2025
Now The Best Free Campsites in All 50 States
Made from composite panels, the Outpost 6.5 is a true four-season camper with a very high insulation value.
—Bryan Rogala, Outside Online, 25 May 2025
See All Example Sentences for insulation
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Adam Williams
june 01, New Atlas, 1 June 2025
Even feathers, which seem delicate, are made of keratin and are engineered for both insulation and lift without adding unnecessary bulk.
—Scott Travers, Forbes.com, 31 May 2025
What to look for in quality dirt bike gloves
Components, size and fit
The key components of a dirt bike glove are the padding, air vents, insulation and reinforcements.
—Bestreviews, Chicago Tribune, 26 May 2025
Now The Best Free Campsites in All 50 States
Made from composite panels, the Outpost 6.5 is a true four-season camper with a very high insulation value.
—Bryan Rogala, Outside Online, 25 May 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 8 Jun. 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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