9 letters · 13 points in Scrabble
noun opposition to the flow of electric current resulting from inductance and capacitance (rather than resistance)
originEtymology tree English react Proto-Indo-European *-yós Proto-Italic *-ios Old Latin -ios Latin -ius Latin -iader. Old French -ancebor. Middle English -aunce English -ance English reactance From react + -ance.
Etymology from Wiktionary, CC BY-SA 3.0