herpes zoster vs zoster

herpes zoster and zoster both are nouns.

Word	Noun	Adjective	Verb	Adverb
herpes zoster	Yes	No	No	No
zoster	Yes	No	No	No

As nouns, herpes zoster and zoster are synonyms defined as:

herpes zoster and zoster: eruptions along a nerve path often accompanied by severe neuralgia

Other synonyms of herpes zoster include shingles.

herpes zoster (noun)	zoster (noun)
a herpes virus that causes shingles	eruptions along a nerve path often accompanied by severe neuralgia
eruptions along a nerve path often accompanied by severe neuralgia