noun
air-raid hood
A padded hood worn by civilians in Japan during World War II air raids, intended to protect the head from falling debris and fire.
防空頭巾は、戦時中の日本で防空訓練の際に使われた。
Air-raid hoods were used during air-defense drills in wartime Japan.
Compound of 防空 (air defense) and 頭巾 (hood).