thermosetting vs thermoplastic

thermosetting is not a noun while thermoplastic is a noun.

Word	Noun	Adjective	Verb	Adverb
thermosetting	No	Yes	No	No
thermoplastic	Yes	Yes	No	No

thermosetting (noun)	thermoplastic (noun)
	a material that softens when heated and hardens again when cooled

thermosetting (adjective)	thermoplastic (adjective)
having the property of becoming permanently hard and rigid when heated or cured	having the property of softening or fusing when heated and of hardening and becoming rigid again when cooled