noun
iron-reinforced warship; Oda Nobunaga's ironclad ship
Historical term referring to large, iron-plated warships built by Oda Nobunaga in the late 16th century, used notably against the Mōri clan.
織田信長は鉄甲船を建造して毛利水軍に対抗した。
Oda Nobunaga built iron-reinforced warships to oppose the Mōri navy.