a fire-extinguishing system that releases water from overhead pipes through nozzles (sprinklers) opened automatically by a rise in temperature
WordReference Random House Unabridged Dictionary of American English © 2025
sprin′kler sys′tem,
- Buildingapparatus for automatically extinguishing fires in a building, consisting of a system of water pipes in or below the ceilings, with valves or sprinklers usually made to open automatically at a certain temperature.
- 1880–85
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