feed back

verb

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.”