sprinkler
noun [ C ] uk/ˈsprɪŋ.kəl.ər/ us/ˈsprɪŋ.kəl.ɚ/
喷水灭火装置
a piece of equipment for putting water onto fires in a lot of small drops to put them out
（用于灌溉植物等的）洒水器，喷洒器
a device with a lot of small holes that you put on the end of a hose in order to water plants, grass, etc.