from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A fire-extinguishing system consisting of a network of overhead pipes that release water automatically when a predetermined temperature has been reached.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a system for extinguishing fires; water from a network of overhead pipes is released through nozzles that open automatically with the rise in temperature
Sorry, no etymologies found.