relief valve
noun
A valve serving to relieve pressure in a system when it becomes too high by opening to allow the escape of gas, water, steam, etc.
Origin
Mid 19th century.
- Yorkist
- Yorks.
- Yorkshire
- Yorkshire fog
- Yorkshireman
- Yorkshire pudding
- Yorkshire terrier
- Yorkshire tyke
- Yorkshirewoman
- Yorktown
- Yoruba
- Yorvik
- Yosemite National Park
- Yoshkar-Ola
- yotta-
- yottabyte
- you
- you ain't seen nothing yet
- you-all
- you-all's
- you-alls
- you and whose army?
- you and yours
- you are welcome
- you bet