fifth cranial nerve vs trigeminal

fifth cranial nerve and trigeminal both are nouns.

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

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

fifth cranial nerve and trigeminal: 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 nerve, trigeminus.

fifth cranial nerve (noun)	trigeminal (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