#dynamo  generator consisting of a coil (the armature) that rotates between the poles of an electromagnet (the field magnet) causing a current to flow in the armature
  supertype:  generator  engine that converts mechanical energy into electrical energy by electromagnetic induction
  part:  field_magnet__fieldmagnet  a magnet that provides a magnetic field in a dynamo or electric motor

No statement uses or specializes dynamo; click here to add one.