esophageal veins vs venae esophageae

esophageal veins and venae esophageae both are nouns.

Word	Noun	Adjective	Verb	Adverb
esophageal veins	Yes	No	No	No
venae esophageae	Yes	No	No	No

As nouns, esophageal veins and venae esophageae are synonyms defined as:

esophageal veins and venae esophageae: small veins from the esophagus emptying into the brachiocephalic vein or the azygos veins

Other synonyms of esophageal veins include oesophageal veins.

esophageal veins (noun)	venae esophageae (noun)
small veins from the esophagus emptying into the brachiocephalic vein or the azygos veins	small veins from the esophagus emptying into the brachiocephalic vein or the azygos veins