pivot joint(n = noun.body) articulatio trochoidea, rotary joint, rotatory joint - a freely moving joint in which movement is limited to rotation; "the articulation of the radius and ulna in the arm is a pivot joint"
is a kind of articulatio synovialis, diarthrosis, synovial joint

ankle joint, artificial joint, ball-and-socket joint, butt joint, butting joint, clip joint, cotyloid joint, cubital joint, degenerative joint disease, dovetail joint, elbow joint, enarthrodial joint, fetlock joint, fibrous joint, fish joint, flexible joint, ginglymoid joint, gliding joint, gyp joint, hinge joint, hip joint, hooke's joint, interphalangeal joint, joint, joint author, joint chiefs, joint chiefs of staff, joint control, joint direct attack munition, joint effort, joint fir, joint hinge, joint operation, joint ownership, joint probability, joint resolution, joint return, joint snake, joint venture, jook joint, juke joint, knee joint, knuckle joint, lap joint, mandibular joint, metacarpophalangeal joint, miter joint, mitre joint, mortise joint, mortise-and-tenon joint, out of joint, pivot, pivot man, pivot shot, rabbet joint, radiocarpal joint, rib joint pliers, rotary joint, rotatory joint, scarf joint, second joint, shoulder joint, spheroid joint, synovial joint, temporomandibular joint, toggle joint, tongue and groove joint, universal joint, water joint, wrist joint