epidermal vs cuticle

epidermal is not a noun while cuticle is a noun.

Word	Noun	Adjective	Verb	Adverb
epidermal	No	Yes	No	No
cuticle	Yes	No	No	No

epidermal (noun)	cuticle (noun)
	hard outer covering or case of certain organisms such as arthropods and turtles
	the outer layer of the skin covering the exterior body surface of vertebrates
	the dead skin at the base of a fingernail or toenail

epidermal (adjective)	cuticle (adjective)
of or relating to a cuticle or cuticula