A hopping joint is a type of joint in the human body that allows for movement. It is composed of two bones connected by ligaments and surrounded by a capsule filled with synovial fluid. The two bones are held together by muscles, tendons, and ligaments. The two solutions to the crossword for the term 'hopping joint' are 'KNEE' and 'ANKLE'. The KNEE is a joint located between the thigh and the lower leg and is the largest joint in the body. The ANKLE is a joint located between the foot and the lower leg and is responsible for bearing the weight of the body.