drenchers

Noun

drencher (plural drenchers)

1. One who, or that which, drenches.
2. A fire prevention device, like a sprinkler but ejecting a denser curtain of water and sometimes mounted on the outside of a building to prevent the spread of fire from those nearby.
   • A second system of conventional dry sprinkler heads is interspersed with the drencher heads.2008, John Ridley, John Channing, Safety at Work, page 675