Palarran (Quenya for 'Far-wanderer') was the name of a large ship built by Tar-Aldarion in the early Second Age. It was the second largest ship in his fleet of ships that included also Eämbar and Hirilondë.
First launched in SA 806 and like the others, Aldarion used it to sail eastwards across the Belegaer to Middle-earth, marking the start of other such voyages.
References
- Unfinished Tales pgs. 178-79, 187-88, & 212