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 of insulation

• solitude
• privacy
• isolation
• segregation

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

Minutes later, her roof partially ripped off, sending insulation and debris flying. — Erika Angulo, NBC news, 11 Oct. 2026

At this level of wealth, residents may expect not just radiant-floor heating but also a degree of insulation from the ugliness of daily life. — Matthew Sedacca, Curbed, 8 Oct. 2026

Much of the waste Fabscrap receives is shredded or downcycled, to be used in insulation. — Bella Webb, Vogue, 8 Oct. 2026

In part, Iran’s political system and ruthless crackdown on protest has given it some insulation from the economic destruction imposed by the blockade and sanctions. — David Goldman, CNN Money, 6 Oct. 2026

Word History

First Known Use

1798, in the meaning defined at sense 2b

Rhymes for insulation

• abdication
• aberration
• abjuration
• abnegation
• abrogation
• acceptation
• acclamation
• acclimation
• accusation
• activation
• actuation
• acylation

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

insulate

ˈin(t)-sə-ˌlāt 

transitive verb

insulated; insulating