Definition of sprinkler system
: a system for protecting a building against fire by means of overhead pipes which convey an extinguishing fluid (as water) to heat-activated outlets
First Known Use of sprinkler system
Learn More about sprinkler system
Britannica.com: Encyclopedia article about sprinkler system
Seen and Heard
What made you want to look up sprinkler system? Please tell us where you read or heard it (including the quote, if possible).