polyamide vs polymeric amide

polyamide and polymeric amide both are nouns.

Word	Noun	Adjective	Verb	Adverb
polyamide	Yes	No	No	No
polymeric amide	Yes	No	No	No

As nouns, polyamide and polymeric amide are synonyms defined as:

polyamide and polymeric amide: a polymer containing repeated amide groups

polyamide (noun)	polymeric amide (noun)
a polymer containing repeated amide groups	a polymer containing repeated amide groups