portal system(redirected from portal systems)
Also found in: Thesaurus, Medical, Encyclopedia.
A system of veins that begins and ends with a capillary network.
a vascular arrangement in which blood from the capillaries of one organ is transported to the capillaries of another organ by a connecting vein or veins.
Switch to new thesaurus
|Noun||1.||portal system - system of veins that carry blood from the abdominal organs to the liver|
hepatic portal vein, portal vein, vena portae, portal - a short vein that carries blood into the liver
vascular system - the vessels and tissue that carry or circulate fluids such as blood or lymph or sap through the body of an animal or plant