tr.v. in·su·lat·ed, in·su·lat·ing, in·su·lates 1. To prevent the passage of heat, electricity, or sound into or out of, especially by surrounding or covering with a nonconducting material: insulate an attic. 2. To cause to be in a detached or isolated position. See Synonyms at isolate. [Latin īnsula, island + -ATE1.] |
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