oceanarium/ˌəʊ.ʃəˈnɛəɹi.əm/EtymologyFrom ocean + -arium, by analogy with aquarium.oceanarium means A park where visitors can see marine mammals and/or fish. Lexicurio rates it Sui generis — a strength score of 91 out of 100.oceanarium is pronounced /ˌəʊ.ʃəˈnɛəɹi.əm/.nounA park where visitors can see marine mammals and/or fish.