1. (noun) a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone

• ball-and-socket joint
• cotyloid joint
• enarthrodial joint
• enarthrosis
• spheroid joint

1. (noun) a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone

• articulatio coxae
• coxa
• hip
• hip joint
• articulatio humeri
• shoulder
• shoulder joint

1. (noun) a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone

• articulatio synovialis
• diarthrosis
• synovial joint