WordWeb Online

1. Equipped with compound gearing consisting of 2 pinions and 2 wheels in mesh to increase the mechanical advantage
   "the double-geared lifting mechanism of a crane"
    
2. (of a lathe) equipped with gearing for reducing the speed of the spindle from that of the driving pulley
   "a double-geared lathe";
   - back-geared

See also: geared