from The Century Dictionary and Cyclopedia

  • n. A valve through which water or other fluid may be blown out or drained away.
  • n. The blow-off valve in a steam-boiler through which water and mud, or precipitated solids in the water, can be blown to waste.
  • n. The valve or gate in the waste-weir or sluice of a dam, through which water may be wasted or allowed to flow out of the pond above the dam to relieve the latter.


Sorry, no etymologies found.



Log in or sign up to get involved in the conversation. It's quick and easy.