insulation /ˌɪnsəˈleɪʃən/ Brit /ˌɪnsjʊˈleɪʃən/ noun /ˌɪnsəˈleɪʃən/ Brit /ˌɪnsjʊˈleɪʃən/
noun
Learner's definition of INSULATION
[noncount]
1
: a material or substance that is used to stop heat, electricity, or sound from going into or out of something : a material that insulates something隔热(或绝缘、隔音)材料 2
a : the quality or state of being insulated隔离;隔绝状态 b : the act of insulating something隔热;绝缘;隔音