1. Any of several silvery marine fishes with very flat bodies
   "Moonfish are known for their distinctive disc-like shape"; "Atlantic moonfish are known for their distinctive disc-like shape";
   - Atlantic moonfish, horsefish, horsehead, horse-head, dollarfish, Selene setapinnis
    
2. Large elliptical brightly coloured deep-sea fish of Atlantic and Pacific and Mediterranean
   "The opah is sometimes called the moonfish due to its round, flat body"; "The Lampris regius is sometimes called the moonfish due to its round, flat body";
   - opah, Lampris regius

Derived forms: moonfishes

Type of: carangid, carangid fish, malacopterygian, soft-finned fish

Part of: genus Lampris, Lampris

Encyclopedia: Moonfish