pivot joint

Definitions of pivot joint
  1. noun
    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
    synonyms: articulatio trochoidea, rotary joint, rotatory joint
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    type of:
    articulatio synovialis, diarthrosis, synovial joint
    a joint so articulated as to move freely
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