Plasma wave

From Memory Alpha, the free Star Trek reference.

A plasma wave is a type of weapon used by the Cardassians that emits an omnidirectional burst of plasma, creating an energetic wave that is nearly impossible to evade. The weapon is most useful when used against multiple small targets, as it allows the user to attack several targets at once.

The Cardassian missile later known as Dreadnought was possessed the ability to generate plasma waves. (VOY: "Dreadnought")