Battleship

A battleship is a warship that is designed to maximize both firepower and protection, while maintaining operational mobility, in a single vessel. As such they are usually large ships relative to others employed by the same fleet. (computer game Star Trek: Legacy)

In the Yesterday's Enterprise Timeline, the USS Enterprise (NCC-1701-D) was equipped as a battleship. (TNG episode "Yesterday's Enterprise")

The terms "battleship" and "dreadnought" are functionally synonymous.