13 letters · 19 points in Scrabble
noun any compound that contains four chlorine atoms per molecule
originEtymology tree Proto-Indo-European *kʷetwóres Proto-Hellenic *kʷétwores Ancient Greek τέσσᾰρες (téssăres) Ancient Greek τετρᾰ- (tetră-)bor. English tetra- English chloride English tetrachloride From tetra- + chloride.
Etymology from Wiktionary, CC BY-SA 3.0