An immediate stop of a machine or system in response to danger or malfunction (often triggered by a button or automatic system).
機械が過熱したため、製造ラインは自動で緊急停止した。
Because the machine overheated, the production line automatically performed an emergency stop.
運転士は異変を感じてすぐに緊急停止ボタンを押した。
The driver sensed something wrong and immediately pressed the emergency stop button.
炉心の異常で原子炉が自動的に緊急停止したと発表された。
It was announced that the reactor automatically performed an emergency shutdown due to a core anomaly.