wingover definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
an aerial maneuver in which an airplane enters a steep climbing turn until almost stalled, rolls beyond a vertical bank, then noses down and dives until normal flight is resumed in a direction approximately opposite to the original direction of flight
wingover definition by American Heritage Dictionary
A flight maneuver or stunt in which an airplane enters a climbing turn until almost stalled and is allowed to fall while the turn is continued until normal flight is attained in a direction opposite the original heading.