bimetallism vs bimetallic

bimetallism is a noun but bimetallic is not a noun.

Word	Noun	Adjective	Verb	Adverb
bimetallism	Yes	No	No	No
bimetallic	No	Yes	No	No

bimetallism (noun)	bimetallic (noun)
a monetary standard under which the basic unit of currency is defined by stated amounts of two metals (usually gold and silver) with values set at a predetermined ratio

bimetallism (adjective)	bimetallic (adjective)
	pertaining to a monetary system based on two metals
	formed of two different metals or alloys; especially in sheets bonded together