noun
continuous fire alarm ringing; urgent fire warning bell
A fire alarm rung continuously to signal that a fire is extremely close. Often associated with the term 擦り半鐘 (すりばんしょう).
See also: 擦り半鐘
火事がすぐ近くまで迫ると、消防団は擦り半を鳴らして知らせる。
When a fire approaches very close, the fire brigade rings the continuous alarm to alert everyone.
noun
sound of the continuous fire alarm
The distinctive ringing sound produced by the 擦り半 alarm.
遠くから擦り半の音が聞こえてきた。
The sound of the continuous fire alarm could be heard from afar.
Abbreviation of 擦り半鐘 (すりばんしょう). 擦り (すり) comes from 擦る (する, 'to rub, strike'), referring to the continuous striking of the bell, and 半鐘 (はんしょう) means 'fire alarm bell'.