feed backverb

• 1

  To provide informational feedback to.

  • His employees fed back a lot more than he wanted.
• 2

  To convey by means of specialized communications channel.

  • Customers fed back their complaints and some praise.
• 3

  To return electrical current generated by some means (such as solar panels, regenerative braking) to the power grid.

  • Regenerative braking is retained. Like rheostatic braking, this uses the traction motors to provide a braking effort, but the current developed is fed back into the overhead catenary rather than dissipated through resistance banks.