It Resists the Flow of Electricity, E.g. Rubber
This page is the CodyCross answer for the clue below from Underground Worlds, Group 2175, Puzzle 3 (Tunnels of Nottingham).
Question is: It Resists the Flow of Electricity, E.g. Rubber
and the answer is: INSULATOR
Word Meaning:
INSULATOR — A substance that does not transmit heat (thermal insulator), sound (acoustic insulator) or electricity (electrical insulator).
Definitions from Wiktionary.