insulation

noun

in·​su·​la·​tion ˌin(t)-sə-ˈlā-shən How to pronounce insulation (audio)
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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
However, Korn Ferry’s focus on executive, C-suite, and roles with higher salaries provides some insulation to these trends, as these roles often require specialized experience and expertise that can be more difficult to find through general job postings. David Trainer, Forbes.com, 15 Aug. 2025 That’s a violation because all kinds of things can come through those holes, such as things that leave four rodent droppings at the three-compartment sink and three droppings in the reach-in freezer insulation. David J. Neal, Miami Herald, 15 Aug. 2025 Modern lids also can provide insulation, while users can enhance the steeping process by covering a teapot (an item often called a tea cozy). Bestreviews, Chicago Tribune, 12 Aug. 2025 Search for signs: Peel back rolled insulation in the attic and watch your home at dusk. Kathy Barnes, Better Homes & Gardens, 9 Aug. 2025 See All Example Sentences for insulation

Word History

First Known Use

1798, in the meaning defined at sense 2b

Time Traveler
The first known use of insulation was in 1798

Cite this Entry

“Insulation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/insulation. Accessed 21 Aug. 2025.

Kids Definition

insulation

noun
in·​su·​la·​tion ˌin(t)-sə-ˈlā-shən How to pronounce insulation (audio)
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 How to pronounce insulation (audio)
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
insulate transitive verb
insulated; insulating

More from Merriam-Webster on insulation

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