First Known Use: 1851
Dictionary
portal system
noun
Definition of PORTAL SYSTEM
: a system of veins that begins and ends in capillaries
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Origin of PORTAL SYSTEM
portal vein
Medical Dictionary
portal system
noun
Medical Definition of PORTAL SYSTEM
: a system of veins that begins and ends in capillaries—see hepatic portal system, pituitary portal system
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Next Word in the Dictionary: portal–to–portalPrevious Word in the Dictionary: portaledAll Words Near: portal system
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