Meaning

noun the state of being isolated or detached

noun a material that reduces or prevents the transmission of heat or sound or electricity

noun the act of protecting something by surrounding it with material that reduces or prevents the transmission of sound or heat or electricity

originEtymology tree English insulate Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin -ātiōlbor. Old French -ationbor. Middle English -acioun English -ation English -ion English insulation From insulate + -ion.

Etymology from Wiktionary, CC BY-SA 3.0