ai·ki·do / ˌīkēˈdō; īˈkēdō/ • n. a Japanese form of self-defense and martial art that uses locks, holds, throws, and the opponent's own movements.

aikido Martial art based on an ancient Japanese system of self-defence. Unlike some other martial art forms, in which force is met with counter-force, aikido employs the technique of avoiding action by making use of an opponent's forward impetus, causing the attacker to suffer a temporary loss of balance. Some forms of aikido, such as tomiki, are also sports.