1. a deep-bodied marine fish with a silvery, disk-shaped body, especially the opah
2. any of various other silvery, round-bodied marine fishes

Examples

• The moonfish is prized by commercial fishermen for its mild, flaky meat.
• We spotted a large moonfish swimming near the surface of the deep ocean.
• The opah, also known as a moonfish, can weigh over 100 pounds.
• Several species of moonfish inhabit tropical and temperate waters.
• The moonfish’s distinctive round shape makes it easy to identify.
• Local restaurants often feature moonfish as a specialty dish.