immunoassay vs immunochemical assay

immunoassay and immunochemical assay both are nouns.

Word	Noun	Adjective	Verb	Adverb
immunoassay	Yes	No	No	No
immunochemical assay	Yes	No	No	No

As nouns, immunoassay and immunochemical assay are synonyms defined as:

immunoassay and immunochemical assay: identification of a substance (especially a protein) by its action as an antigen

immunoassay (noun)	immunochemical assay (noun)
identification of a substance (especially a protein) by its action as an antigen	identification of a substance (especially a protein) by its action as an antigen