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English definition of “insulation”

insulation

noun [U]     /ˌɪn.sjʊˈleɪ.ʃən/
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 noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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