metacarpophalangeal joint

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a joint of a finger when the fist is closed
• Syn:
knuckle, knuckle joint
• Derivationally related forms:
knuckle (for: knuckle)
• Hypernyms:
synovial joint, articulatio synovialis, diarthrosis
• Part Holonyms:
finger