dielectric diehard • dielectrically · · · Info · Definitions · Synonyms · Characters · · dielectric · · Text Latin · · Script 10 · · Length Definitions · · · (noun) a material such as glass or porcelain with negligible electrical or thermal conductivity. Synonyms: insulator, nonconductor. · · Noun Definition 1 Synonyms · · · insulator · · Synonym 1 nonconductor · · Synonym 2 Characters · · c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C r latin small letter r U+0072 t latin small letter t U+0074