USS Defiance
From Star Trek: Theurgy Wiki
The USS Defiance was a Federation starship operated by Starfleet in the late 24th century. In 2380 Cameron Henshaw spent her cadet cruise aboard the Defiance as a medical intern before graduating as ensign and transferring to the USS Harbinger.
(It is unknown what class of starship the USS Defiance was but it was likely a late 24th century vessel like a Prometheus or a Steamrunner class.)
