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Noun: cotyloid joint
  1. A freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone
    "The shoulder is an example of a cotyloid joint, allowing for a wide range of motion";
    - ball-and-socket joint, spheroid joint, enarthrodial joint, enarthrosis, articulatio spheroidea

Derived forms: cotyloid joints

Type of: articulatio synovialis, diarthrosis, synovial joint