擦り半
Noun
1
noun (common) (futsuumeishi)
fire alarm ringing continuously to warn that a fire is extremely near
See also:
擦り半鐘 (すりばんしょう)
2
noun (common) (futsuumeishi)
sound as produced by this alarm
Other forms
擦半 【すりばん】 · 擂り半 【すりばん】