安あん全ぜん弁べん

noun

safety valve

A mechanical device that automatically releases pressure from a boiler, pressure vessel, or piping system to prevent explosion. Also used figuratively for an outlet that relieves stress or tension.

• ボイラーには安あん全ぜん弁べんが取とり付つけられている。

  A safety valve is installed on the boiler.

• 彼かれにとってカラオケはストレスの安あん全ぜん弁べんだ。

  For him, karaoke is a safety valve for stress.