Gunpowder
The term gunpowder covers chemical substances of various compositions, particle sizes, shapes, and colours that, on ignition, serve as a propellant. Ignited smokeless powder emits minimal quantities of smoke from a gun’s muzzle.
The older black powder emits relatively large quantities of whitish smoke.National Rifle Association of America’s Institute for Legislative Action (NRA-ILA) Glossary, http://www.nraila.org/glossary.aspx?s=Glossary&st=&ps=. See also the definition of propellant in this Glossary.
Last updated on: 01 February 2014