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

• aloneness
• isolation
• privacy
• secludedness
• seclusion
• segregation
• separateness
• sequestration
• solitariness
• solitude

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

Everything from insulation, outlets, windows, doors, and plumbing are built beforehand. —Rylee Johnston, Travel + Leisure, 12 Apr. 2025

Operating within ‘Motorsport Valley’ in the UK and using a customer Ferrari engine in its early years on the grid could provide Cadillac with some insulation from the tariffs. —Madeline Coleman, New York Times, 11 Apr. 2025

Accessorize it with a smattering of throw pillows or purchase a soft seat cushion to give your bottom more insulation from the rattan texture. —Audrey Lee, Architectural Digest, 10 Apr. 2025

Aiding this was the Sealion 7’s superb noise insulation. —Matthew MacConnell, Forbes.com, 9 Apr. 2025

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