/oh'shee an"ik/ , adj.
1. of, living in, or produced by the ocean: oceanic currents.
2. of or pertaining to the region of water lying above the bathyal, abyssal, and hadal zones of the sea bottom. Cf. neritic, pelagic .
3. immensely large; vast: an oceanic expanse of stars.
4. ( cap. ) of or pertaining to Oceania, its peoples, or their languages.
[ 1650-60; oceanicus, equiv. to L ocean ( us ) OCEAN + -icus -IC ]