[1] : WordNet (r) 2.0

umbilical vein
     n : a vein in the umbilical cord; returns nutrient blood from
         the placenta to the fetus syn: vena umbilicalis
see also:
vena umbilicalis 

Umbilical Vein >> U Words
Umbilical Vein, definition of term: Umbilical Vein
umbilical+vein_pag1.html

Vein >> V Words
Vein, definition of term: Vein
vein_pag1.html

Umbilical >> U Words
Umbilical, definition of term: Umbilical
umbilical_pag1.html

Umbilical Cord >> U Words
Umbilical Cord, definition of term: Umbilical Cord
umbilical+cord_pag1.html

Pulmonary Vein >> P Words
Pulmonary Vein, definition of term: Pulmonary Vein
pulmonary+vein_pag1.html

Varicose Vein >> V Words
Varicose Vein, definition of term: Varicose Vein
varicose+vein_pag1.html