Plain English Meaning

Move the yoke or stick back to center sideways so the ailerons sit flush with the wings and stop commanding a roll.

Full Definition

To return the ailerons to their streamlined, no-deflection position by centering the control yoke or stick laterally, so that neither aileron is deflected up or down relative to the wing.

Context Anchor

Used during flight instruction when the instructor wants the student to stop applying roll control, especially during recovery practice or when another is the proper .