accessory hemiazygos vein
- a vein formed by the union of the 4th to 7th posterior intercostal veins; empties into the azygos vein
- hemiazygos vein, accessory
- There is a vein of melancholy in his character.
- She helps her mother when she is in the vein.
- A radio is an accessory to a car.
- A vein of gold was seen cropping out.