noun
emergency stop; emergency shutdown
Refers to an immediate halt of machinery, vehicles, or systems for safety reasons. Often seen on buttons or in technical contexts.
See also: 緊急停止
火災報知器が鳴ったので、エレベーターが非常停止した。
The elevator made an emergency stop because the fire alarm went off.
工場の機械には赤い非常停止ボタンが付いている。
The factory machines have a red emergency stop button.
緊急停止 is a near-synonym also meaning emergency stop, but 非常停止 is more commonly used for physical emergency stop buttons and immediate halts, while 緊急停止 can be used in broader urgent-stop contexts.
Compound of 非常 (emergency) and 停止 (stop). The exact historical derivation is uncertain, but the word is a straightforward modern technical term.