1transfix or pierce with a sharp instrument:his head was impaled on a pike and exhibited for all to see
2 Heraldry display (a coat of arms) side by side with another on the same shield, separated by a vertical line: (as adjective impaled)the impaled arms of her husband and her father
(of a coat of arms) adjoin (another coat of arms) on the same shield:the arms of the order are impaling those of the sovereign