The Collaborative International Dictionary
Prison \Pris"on\ (?; 277), n. [F., fr. L. prehensio, prensio, a seizing, arresting, fr. prehendre, prendere, to lay hold of, to seize. See Prehensile, and cf. Prize, n., Misprision.]
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A place where persons are confined, or restrained of personal liberty; hence, a place or state o? confinement, restraint, or safe custody.
Bring my soul out of prison, that I may praise thy name.
--Ps. cxlii. 7.The tyrant [AE]olus, . . . With power imperial, curbs the struggling winds, And sounding tempests in dark prisons binds.
--Dryden. -
Specifically, a building for the safe custody or confinement of criminals and others committed by lawful authority.
Prison bars, or Prison base. See Base, n., 24.
Prison breach. (Law) See Note under 3d Escape, n., 4.
Prison house, a prison.
--Shak.Prison ship (Naut.), a ship fitted up for the confinement of prisoners.
Prison van, a carriage in which prisoners are conveyed to and from prison.
Wikipedia
Prison Ship is a 1986 American science fiction film directed by Fred Olen Ray.
It was also known as Star Slammer.
Usage examples of "prison ship".
Karen Hansen Clement was sent to the island of Cyprus on a British prison ship and interned in the Caraolos camp.
Sure enough, EL-434 was soon aboard a prison ship, the 'Celestial', en route to a safeworld.
A Perez y de Gras shouldn't be used as a prison ship to transport common criminals.
They had returned to Arrakis from Giedi Prime only a few weeks before, and Janess had arrived on the previous day's prison ship.
I didn't want to be the man responsible for sending him to a prison ship.
Astonishingly enough, there was one Cat-teni, Emassi Zainal, who had been shanghaied onto the prison ship.