A Dominion battleship is approximately twice the size of a Federation Galaxy-class starship, making it roughly 1200m in length. It is also approximately three times as powerful as the Galaxy-class, making it one of the most formidable warships ever seen in Star Trek.
The ship's armament includes phased polaron beams and torpedoes of an unspecified design.
According to a Federation probe, the battleship's antimatter storage tanks are held in place by braces made of "viterium", a material that decomposes when exposed to "delta radiation". The USS Valiant attempted to exploit this weakness to destroy a Dominion battleship, but their improvised "delta radiation" torpedo had no effect.