articulatio synovialis, diarthrosis, synovial joint - a joint so articulated as to move freely

ankle, ankle joint, articulatio talocruralis, mortise joint - a gliding joint between the distal ends of the tibia and fibula and the proximal end of the talus

articulatio radiocarpea, carpus, radiocarpal joint, wrist, wrist joint - a joint between the distal end of the radius and the proximal row of carpal bones