6 letters · 9 points in Scrabble
noun a yellow crystalline explosive solid that is used in detonators
originEtymology tree Proto-Indo-European *kʷetwóres Proto-Hellenic *kʷétwores Ancient Greek τέσσᾰρες (téssăres) Ancient Greek τετρᾰ- (tetră-)bor. English tetra- Ancient Greek ῡ̔́λη (hū́lē)der. Frenchder. English -yl English tetryl From tetra- (“four”) + -yl (“radical”).
Etymology from Wiktionary, CC BY-SA 3.0