accessory_hemiazygous_vein
1. [ noun ] (anatomy,zoology) a vein formed by the union of the 4th to 7th posterior intercostal veins; empties into the azygos vein
Synonyms: vena_hemiazygos_accessoria accessory_hemiazygos_vein
Related terms: vein
Similar spelling:   accessory_hemiazygos_vein
  accessory_vertebral_vein
  accessory_cephalic_vein