auxiliary vs adjuvant

auxiliary and adjuvant both are nouns.

Word	Noun	Adjective	Verb	Adverb
auxiliary	Yes	Yes	No	No
adjuvant	Yes	Yes	No	No

As adjectives, auxiliary and adjuvant are synonyms defined as:

Other synonyms of auxiliary include accessory, adjunct, ancillary, appurtenant.

auxiliary (noun)	adjuvant (noun)
someone who acts as assistant	an additive that enhances the effectiveness of medical treatment

auxiliary (adjective)	adjuvant (adjective)
functioning in a supporting capacity	enhancing the action of a medical treatment
furnishing added support	furnishing added support