quartz-filled phenolic
1environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …
2Insulator (electrical) — Ceramic insulator at railways Conducting copper wire insulate …
3Nonconductor — Nonconductors or electrical insulators are materials which lack movable electric charges, and which therefore lack a low resistance path for charge flow. When a difference in electrical potential is placed across a nonconductor, no free charges… …
