nervus vagus vs vagus nerve

nervus vagus and vagus nerve both are nouns.

Word	Noun	Adjective	Verb	Adverb
nervus vagus	Yes	No	No	No
vagus nerve	Yes	No	No	No

As nouns, nervus vagus and vagus nerve are synonyms defined as:

nervus vagus and vagus nerve: a mixed nerve that supplies the pharynx and larynx and lungs and heart and esophagus and stomach and most of the abdominal viscera

Other synonyms of nervus vagus include pneumogastric, pneumogastric nerve, tenth cranial nerve, vagus, wandering nerve.

nervus vagus (noun)	vagus nerve (noun)
a mixed nerve that supplies the pharynx and larynx and lungs and heart and esophagus and stomach and most of the abdominal viscera	a mixed nerve that supplies the pharynx and larynx and lungs and heart and esophagus and stomach and most of the abdominal viscera