Main Entry: in·su·la·tion

Pronunciation: \ˌin(t)-sə-ˈlā-shən\

Function: noun

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

—in·su·late \ˈin(t)-sə-ˌlāt\ transitive verb, in·su·lat·ed; in·su·lat·ing