There are multiple definitions:
veno-venous(English)
- ECMO can be implemented either as veno-arterial (VA) or veno-venous (VV) therapy
- ECMO, VA
- Pulmonology
- https://doi.org…1471-2253-14-65
varicose vein(English)
vasa vasorum(Latin)
- defined literally as vessels of the vessels, and predominantly observed in large vessels with an important role under pathological conditions
- Anatomy, Vessel properties
- https://doi.org…03058-5.00006-0
voided volume(English)