gunpowder UK /ˈɡʌnˌpaʊdə/US /ˈɡʌnˌpaʊdɚ/noun 3verb 1forms 3 noun3 •An explosive mixture of saltpetre (potassium nitrate), charcoal and sulfur; formerly used in gunnery but now mostly used in fireworks. •Ellipsis of gunpowder tea. •(India, informal) Idli podi/milagai podi; ground-up dry spices mixed with oil and ghee and served alongside idli or dosa.Some restaurants try and give their dosas the "ethnic" touch by slipping along a small dish of mulaga podi-gunpowder mixed with oil as well, but that isn't always enough. — 1989 verb1 •To destroy with gunpowder.[…] he was […] never getting into quarrels with his neighbors and gunpowdering them out of house and home. His subjects loved him. — 1875 formsgunpowdered · gunpowdering · gunpowders