drencher
nounEtymology From Middle English *drencher (found in the Surname Drencher), equivalent to drench + -er.
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:
- The drencher supply should also be separate from the sprinkler supply.1950, Great Britain. Ministry of Public Building and Works, Post-war Building Studies (issues 28-31, page 14)