1
a
: a vehicle or an attachment to a vehicle for sprinkling streets or roads
c
: a device for spraying plants or lawns
d
: a device for distributing sewage on a filter bed
2
a
: one that sprinkles timbers in mines with chemicals to make them proof against fire and rot
b
: one that sprinkles dry coal or dust in a mine with water to prevent explosions
c
: a laundry worker who uses a sprinkler to dampen clothes for ironing
3
: one that believes in baptism by aspersion rather than by immersion
: to provide with an automatic sprinkler system
stressing the importance of having all schools sprinklered—
Springfield (Massachusetts) Daily News
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Merriam-Webster unabridged
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