The DICT Development Group

  Spadefish \Spade"fish`\ (sp[=a]d"f[i^]sh`), n. (Zool.)
     An American market fish ({Chaetodipterus faber) common on
     the southern coasts; -- called also angel fish, moonfish,
     and porgy.
     [1913 Webster]

  Moonfish \Moon"fish`\, n. (Zool.)
     (a) An American marine fish ({Vomer setipennis); -- called
         also bluntnosed shiner, horsefish, and sunfish.
     (b) A broad, thin, silvery marine fish ({Selene vomer); --
         called also lookdown, and silver moonfish.
     (c) The mola. See Sunfish, 1.
         [1913 Webster]

  moonfish
      n 1: any of several silvery marine fishes with very flat bodies
           [syn: moonfish, Atlantic moonfish, horsefish,
           horsehead, horse-head, dollarfish, Selene
           setapinnis]
      2: large elliptical brightly colored deep-sea fish of Atlantic
         and Pacific and Mediterranean [syn: opah, moonfish,
         Lampris regius]