Real Dictionary

aikido in American English
a Japanese system of self-defense in which various holds and circular movements are used to exploit to one's own advantage an opponent's strength and weight
noun: a Japanese form of self-defense utilizing wrist, joint, and elbow grips to immobilize or throw one's opponent

aikido in British English
noun: a Japanese system of self-defence employing similar principles to judo, but including blows from the hands and feet