10 letters · 18 points in Scrabble
adjective having the quality or power of conducting heat or electricity or sound; exhibiting conductivity
originEtymology tree English conduct Proto-Indo-European *-wós Proto-Indo-European *-iHwósder. Latin -īvus Old French -ifbor. Middle English -yf English -ive English conductive From conduct + -ive.
Etymology from Wiktionary, CC BY-SA 3.0