vena renalis

English Thesaurus

1. veins that accompany renal arteries; open into the vena cava at the level of the 2nd lumbar vertebra (noun.body)

hypernym	:	vein, vena, venous blood vessel,
definition	:	a blood vessel that carries blood from the capillaries toward the heart (noun.body)

part meronym	:	kidney,
definition	:	either of two bean-shaped excretory organs that filter wastes (especially urea) from the blood and excrete them and water in urine (noun.body)