servocontrol

noun

1. control by means of a servomechanism.
2. a servomechanism used as a control.
3. Also called Flettner control, servo tab. Aeronautics. a tab that is directly actuated by the control stick and that exerts an aerodynamic force to move a control surface to which it is attached.

verb (used with object), ser·vo·con·trolled, ser·vo·con·trol·ling.

4. to operate (a mechanism) with such a device.