| azygous | <zoology> Odd; having no fellow; not one of a pair; single; as, the azygous muscle of the uvula. (12 Mar 1998) |
|---|---|
| azygos continuation | (of the inferior vena cava), a congenital anomaly in which the infrahepatic portion of the vena cava fails to form, and venous drainage of the lower body is maintained through a persistent right supracardinal vein, which becomes a large azygos vein. (05 Mar 2000) |
| azygos continuation of interrupted ivc | <radiology> IVC interrupted, hepatic portion absent, joins azygos or hemiazygos, hepatic veins empty directly into RA, associated with polysplenia (12 Dec 1998) |