Generation ship

A generation ship is a type of starship dedicated to long journeys using more than one generation of the crew during the journey to arrive at the destination.

In the 2040s, the generation ship SS Valencia left on a 90 year journey to Iota Persei IV. (Star Trek: Shadowstar Station: "Last Night I Dreamed Someone Loved Me")

's Klingon D7 class battle cruiser was a generation ship dedicated to finding the kuvah'magh.