spheroid joint

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a freely moving joint in which a sphere on the head of one bone fits into a rounded cavity in the other bone
• Syn:
ball-and-socket joint, cotyloid joint, enarthrodial joint, enarthrosis, articulatio spheroidea
• Hypernyms:
synovial joint, articulatio synovialis, diarthrosis
• Hyponyms:
shoulder, shoulder joint, articulatio humeri, hip, hip joint,
coxa, articulatio coxae