insulant insulance • insular · · · Info · Definitions · Synonyms · Characters · · insulant · · Text Latin · · Script 8 · · Length Definitions · · · (noun) a material that reduces or prevents the transmission of heat or sound or electricity. Synonyms: insulating material, insulation. · · Noun Definition 1 Synonyms · · · insulating material · · Synonym 1 insulation · · Synonym 2 Characters · · a latin small letter a U+0061 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075