13 letters · 19 points in Scrabble
noun an electronic device that administers an electric shock of preset voltage to the heart through the chest wall in an attempt to restore the normal rhythm of the heart during ventricular fibrillation
originEtymology tree English defibrillate Old French -eorbor. Middle English -our Proto-Indo-European *-tōr Proto-Italic *-tōr Latin -torlbor. English -or English defibrillator From defibrillate + -or.
Etymology from Wiktionary, CC BY-SA 3.0