noun
ironclad warship; armored ship
Historical term for a 19th-century warship protected by iron or steel armor plates. In modern contexts, 装甲艦 or more specific ship classifications are used.
幕末に日本は甲鉄艦を導入した。
Japan introduced ironclad warships at the end of the Edo period.
甲鉄艦は木造船に鉄板を張
An ironclad is a warship with iron plates attached to a wooden hull.