Plain English Meaning
A landing gear system where an electric motor does the work of raising and lowering the wheels, instead of hydraulic pressure or the pilot cranking them by hand.
Full Definition
A retractable landing gear system that uses an electric motor to drive the gear up and down. The motor turns a system of gears, screw jacks, or torque tubes that move each landing gear leg between the extended and retracted positions, with limit switches stopping the motor at the end of travel and locking mechanisms holding the gear in place.
Context Anchor
Seen in retractable-gear airplane training, especially when learning gear operation, gear indications, and backup gear-extension .