1. a tropical marine fish with a cube-shaped or box-like body covered in bony plates

Examples

• The yellow boxfish swam slowly through the coral reef.
• Boxfish are popular in saltwater aquariums due to their unique appearance.
• The diver spotted a colorful boxfish hiding among the rocks.
• Boxfish have rigid bodies that make them poor swimmers but well-protected.
• The aquarium’s tropical exhibit featured several species of boxfish.
• When threatened, some boxfish can release toxins into the water.