9 letters · 25 points in Scrabble
noun a colorless fuming corrosive liquid; a powerful reducing agent; used chiefly in rocket fuels
originEtymology tree German Hydrazinbor. English hydrazine Borrowed from German Hydrazin, coined by Emile Fischer in 1875 as a derivative from Diazin, an obsolete name for diimide, of which hydrazine is a hydrogenated analog. By surface analysis, hydr- + azo (“nitrogen”) + -ine.
Etymology from Wiktionary, CC BY-SA 3.0