oceanarium

[ oh-shuh-nair-ee-uh m ]
/ ˌoʊ ʃəˈnɛər i əm /

noun, plural o·cea·nar·i·ums, o·cea·nar·i·a [oh-shuh-nair-ee-uh] /ˌoʊ ʃəˈnɛər i ə/.

a large saltwater aquarium for the display and observation of fish and other marine life.

Origin of oceanarium

1935–40; ocean + -arium, modelled on aquarium

British Dictionary definitions for oceanarium

oceanarium
/ (ˌəʊʃəˈnɛərɪəm) /

noun plural -iums or -ia (-ɪə)

a large saltwater aquarium for marine life