fifth cranial nerve vs trigeminal nerve

fifth cranial nerve and trigeminal nerve both are nouns.

Word	Noun	Adjective	Verb	Adverb
fifth cranial nerve	Yes	No	No	No
trigeminal nerve	Yes	No	No	No

As nouns, fifth cranial nerve and trigeminal nerve are synonyms defined as:

fifth cranial nerve and trigeminal nerve: the main sensory nerve of the face and motor nerve for the muscles of mastication

Other synonyms of fifth cranial nerve include nervus trigeminus, trigeminal, trigeminus.

fifth cranial nerve (noun)	trigeminal nerve (noun)
the main sensory nerve of the face and motor nerve for the muscles of mastication	the main sensory nerve of the face and motor nerve for the muscles of mastication