Function: noun
Date: circa 1909
: a system for protecting a building against fire by means of overhead pipes which convey an extinguishing fluid (as water) to heat-activated outlets
Function: noun
Date: circa 1909
: a system for protecting a building against fire by means of overhead pipes which convey an extinguishing fluid (as water) to heat-activated outlets
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012