1. a large aquarium or marine park where ocean animals are kept and displayed for public viewing and education

Examples

• The children were fascinated by the dolphins at the oceanarium.
• We visited the oceanarium to see sharks, sea turtles, and colorful fish.
• The oceanarium features a massive tank where visitors can watch whales swim overhead.
• Many oceanariums offer educational programs about ocean conservation.
• The new oceanarium in the city has become a popular tourist attraction.