A combat tactic wherein one maneuvers their ship parallel to a target, and engages with a concentrated majority of their available weapons.
Typically considered the primary tactic and focus for “Beam Boats ”, wherein forward and aft weapon slots are filled with beam arrays which overlap in a 70 deg 'broadside' zone port and starboard of the ship allowing for 6+ beam arrays to engage upon the target.
However, other types of builds also allow for Broadsiding.
Broadsiding tends to cause considerable power drain issues for the energy weapons used (often 6+ weapons are being triggered at or about the same time). It is thus wise to boost weapon energy in order to sustain DPS during sustained broadside salvos: Emergency Power to Weapons, Weapon batteries, and setting weapon power to it's max are often employed to compensate for the drain.