Sprinkler (noun)

1. A device that sprays water in order to water plants or to put out fires.
2. A system of pipes and nozzles for watering a lawn or garden.

Origin:

Early 19th century (in the sense "something that sprinkles"): from sprinkle + -er.

Examples:

1. He set up a sprinkler to water the lawn.
2. She turned on the sprinkler to water the flowers.
3. The fire department used a sprinkler to put out the fire.
4. The farmer used a sprinkler to water the crops.
5. The kids ran through the sprinkler on a hot summer day.