Trill system
From Memory Alpha, the free Star Trek reference
The Trill system is a star system and the location of the M-class planet Trill.
When the memories of Joran Belar began to resurface within Jadzia Dax in 2371, Jadzia was taken to her homeworld in the Trill system in search of a way to save her life. (DS9: "Equilibrium")
