Covariant phaser pulse
A covariant phaser pulse was a specialized directed-energy discharge capable of taking advantage of phase retractions in an enemy vessel's shield configuration.

In 2372, while engaged in combat with a Reptohumanoid vessel in the Delta Quadrant, Lieutenant Tuvok, chief tactical officer of the , detected a slight phase retraction in the shields of the enemy vessel, whenever the enemy transferred auxiliary power to their aft weapons systems. Utilizing a covariant phaser pulse fired at the enemy vessel's aft control systems, Tuvok was able to disable their entire weapons array. ()

See also
 Covariant pulse
 Covariant shielding
 Phaser
 Phaser pulse
Directed energy weapons