tub-sided samurai cuirass
Historical term for a type of Japanese armor with a barrel-shaped body, used in the samurai period.
I saw a tub-sided samurai cuirass at the museum.
Compound of 桶 (おけ, 'tub'), 側 (がわ, 'side'), and 胴 (どう, 'trunk, torso'), referring to the barrel-like shape of the cuirass.