DREADNOUGHT

(n.) Any battleship having its main armament entirely of big guns all of one caliber. Since the Dreadnought was built, the caliber of the heaviest guns has increased from 12 in. to 13/ in., 14 in., and 15 in., and the displacement of the largest batteships from 18,000 tons to 30,000 tons and upwards. The term superdreadnought is popularly applied to battleships with such increased displacement and gun caliber.