Ginglymodi \Gin`gly*mo"di\, n. [NL.; cf. Gr. ? ginglymoid. See
   Ginglymoid.] (Zool.)
   An order of ganoid fishes, including the modern gar pikes and
   many allied fossil forms. They have rhombic, ganoid scales, a
   heterocercal tail, paired fins without an axis, fulcra on the
   fins, and a bony skeleton, with the vertebr[ae] convex in
   front and concave behind, forming a ball and socket joint.
   See Ganoidel. Ginglymoid