noun
superdreadnought (class of warships)
Historical naval term referring to a class of battleships that surpassed the original dreadnought design, typically built in the early 20th century.
超弩級戦艦は第一次世界大戦の海軍力の象徴だった。
Superdreadnoughts were a symbol of naval power during World War I.
弩級戦艦 (dreadnought) refers to the original revolutionary battleship design, while 超弩級戦艦 (superdreadnought) denotes the subsequent, more powerful class that surpassed it.
Compound of 超 (super), 弩級 (dreadnought-class, from 弩 'crossbow' + 級 'class'), and 戦艦 (battleship). The term 弩級 itself is a Japanese calque of 'dreadnought' (literally 'fear nothing'), using the character 弩 for its phonetic value.