Definition of fire extinguisher. in English English dictionary
A device that can be used to put out a fire. Usually a cylinder filled with carbon dioxide, dry powder or water, in the latter two cases with some means of pressurising the cylinder to expel the contents
A fire extinguisher is a metal cylinder which contains water or chemicals at high pressure which can put out fires. A portable apparatus containing chemicals that can be discharged in a rapid stream to extinguish a small fire