umbilical vein vs vena umbilicalis

umbilical vein and vena umbilicalis both are nouns.

Word	Noun	Adjective	Verb	Adverb
umbilical vein	Yes	No	No	No
vena umbilicalis	Yes	No	No	No

As nouns, umbilical vein and vena umbilicalis are synonyms defined as:

umbilical vein and vena umbilicalis: a vein in the umbilical cord; returns nutrient blood from the placenta to the fetus

umbilical vein (noun)	vena umbilicalis (noun)
a vein in the umbilical cord; returns nutrient blood from the placenta to the fetus	a vein in the umbilical cord; returns nutrient blood from the placenta to the fetus