palatine vein vs vena palatina

palatine vein and vena palatina both are nouns.

Word	Noun	Adjective	Verb	Adverb
palatine vein	Yes	No	No	No
vena palatina	Yes	No	No	No

As nouns, palatine vein and vena palatina are synonyms defined as:

palatine vein and vena palatina: a vein that drains the region of the palate and empties into the facial vein

palatine vein (noun)	vena palatina (noun)
a vein that drains the region of the palate and empties into the facial vein	a vein that drains the region of the palate and empties into the facial vein