Plain English Meaning
Flaps that move up and down because an electric motor moves them, instead of being moved by hydraulic pressure or by a hand lever.
Full Definition
Wing flaps that are extended and retracted by an electric motor, controlled from the cockpit by a switch or selector that signals the motor to drive the flaps to the selected position.
Context Anchor
A pilot encounters electrically driven flaps during preflight checks, before takeoff, during landing setup, and when considering what to do after an electrical problem.
Derivation
“Flap” comes from an older English idea of something that hangs or moves back and forth. In aviation, it came to mean a movable part of . “Driven” here means powered or moved by something, so electrically driven flaps are flaps moved by electrical .