Trilithium weapon
From Memory Alpha, the free Star Trek reference.
A trilithium weapon is a weapon utilizing trilithium as an explosive agent.
In 2371, Dr. Tolian Soran utilized a weapon made with stolen trilithium in order to detonate the Veridian star to access the Nexus. His attempt failed and the weapon detonated on the surface of Veridian III. (Star Trek Generations)
The Changeling Julian Bashir created a trilithium weapon composed of trilithium, tekasite, and protomatter designed to destroy the Bajoran sun. His attempt was stopped by the USS Defiant. (DS9: "By Inferno's Light")
