Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “insulation”

insulation

noun [U] uk   /ˌɪn.sjʊˈleɪ.ʃən/ us  
the act of covering something to stop heat, sound, or electricity from escaping or entering, or the fact that something is covered in this way: The animal's thick fur provides very good insulation against the arctic cold.Isolating and separating material that is used to stop heat, sound, or electricity from escaping or entering: Glass fibre is often used as roof insulation.Building materials
(Definition of insulation from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of insulation?
Add Cambridge dictionaries to your browser to your website

Definitions of “insulation” in other dictionaries

Word of the Day

nip

to press something quickly and quite hard between two objects, especially sharp objects such as teeth or nails

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More