pə-ˈla-jik
Adjective
1. Relating to or occurring or living in or frequenting the open ocean. (wordnetweb.princeton.edu)
2. Living in the open sea rather than in coastal or inland waters. (wiktionary.org)
3. Relating to or occurring or living in or frequenting the open ocean; oceanic islands like Bermuda; oceanic currents; oceanic birds; pelagic organisms; pelagic whaling. (biology-online.org)
4.
Word origin: From Latin pelagicus, from Greek pelagikos, from pelagos “sea, high sea, open sea, main,” *pelag– “to spread out” (cf. Greek plagos “side,” Latin plaga “hunting net, curtain, region”).