noun
hand-operated fire pump
Historical term for a manually operated water pump used in firefighting, similar to 竜吐水 (りゅうどすい). Rare in modern usage; encountered mainly in historical or museum contexts.
See also: 竜吐水 (りゅうどすい)
江戸時代の火消しは雲竜水を使って消火にあたった。
Edo-period firefighters used hand-operated pumps to fight fires.
Synonymous historical term for a hand-operated fire pump; 雲竜水 is a variant name for the same device.
The term combines 雲 (cloud), 竜/龍 (dragon), and 水 (water), likely evoking the image of a dragon spewing water like a cloud. The exact origin is uncertain, but it is a traditional name for a fire pump.