Fire extinguisher. (n.d.). In YourDictionary. Retrieved from https://www.yourdictionary.com/fire-extinguisher
(plural fire extinguishers)
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.
English Wiktionary. Available under CC-BY-SA license.