Definition of oceanic adjective from the Oxford Advanced Learner's Dictionary

 

oceanic

 adjective
adjective
BrE BrE//ˌəʊʃiˈænɪk//
 
; NAmE NAmE//ˌoʊʃiˈænɪk//
 
[usually before noun](specialist)
 
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living in or connected with the ocean oceanic fish Word Origin mid 17th cent.: from ocean + -ic.
See the Oxford Advanced American Dictionary entry: oceanic