sprinkler system
US /ˈsprɪŋ.klər ˌsɪs.təm/
UK /ˈsprɪŋ.klər ˌsɪs.təm/
1.
a system of pipes and sprinkler heads that distributes water for irrigation or fire suppression
:
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The garden's sprinkler system turns on automatically every morning.
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The building's sprinkler system activated during the fire, helping to contain the flames.