9 letters · 19 points in Scrabble
adjective of an electrical system that uses or generates two or more alternating voltages of the same frequency but differing in phase angle
originEtymology tree Proto-Indo-European *pleh₁- Proto-Indo-European *polh₁ús Ancient Greek πολῠ́ς (polŭ́s)lbor. English poly- English phase English polyphase From poly- + phase.
Etymology from Wiktionary, CC BY-SA 3.0