vena portae vs portal

vena portae and portal both are nouns.

Word	Noun	Adjective	Verb	Adverb
vena portae	Yes	No	No	No
portal	Yes	No	No	No

As nouns, vena portae and portal are synonyms defined as:

Other synonyms of vena portae include hepatic portal vein, portal vein.

vena portae (noun)	portal (noun)
a short vein that carries blood into the liver	a grand and imposing entrance (often extended metaphorically)
	a short vein that carries blood into the liver
	a site that the owner positions as an entrance to other sites on the internet