frost valve
noun
A valve which can be opened to allow water to escape from a part of a pipe, pump, etc., where it is liable to freeze.
Origin
Mid 19th century; earliest use found in The Mechanics' Magazine.
- Northern soul
- northern spotted owl
- Northern Spy
- northern star
- northern state
- Northern Territory
- Northern Tier
- northern waterthrush
- northern white cedar
- north-facing
- North, Frederick
- North Germanic
- north half
- northing
- North Island
- North Islander
- North Kingstown
- North Korea
- North Korean
- northland
- northlander
- North Las Vegas
- north light
- North Little Rock
- northly