止し水すい栓せん

noun

stopcock; stop valve; shut-off valve

A valve used to stop the flow of water, typically in plumbing or water supply systems. Often refers to the main shut-off valve for a building or fixture.

• 水すい道どうの修しゅう理りの前まえに、止し水すい栓せんを閉しめてください。

  Please close the stopcock before repairing the water pipe.

• この建たて物ものの止し水すい栓せんは地ち下かにあります。

  The shut-off valve for this building is in the basement.