bimetallic vs bimetal

bimetallic is not a noun while bimetal is a noun.

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

As adjectives, bimetallic and bimetal are synonyms defined as:

bimetallic and bimetal: formed of two different metals or alloys; especially in sheets bonded together

bimetallic (noun)	bimetal (noun)
	material made by bonding together sheets of two different metals

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