noun
: a crystalline salt NH 4 ClO 4 used chiefly as an oxidizer in explosives, in fireworks, and solid propellant systems for rockets
noun
: a crystalline salt NH 4 ClO 4 used chiefly as an oxidizer in explosives, in fireworks, and solid propellant systems for rockets
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012