cuticle

definition: hard outer covering or case of certain organisms such as arthropods and turtles
example:
speech part: noun
synonyms: carapace
definition: the outer layer of the skin covering the exterior body surface of vertebrates
example:
speech part: noun
synonyms: epidermis
definition: the dead skin at the base of a fingernail or toenail
example:
speech part: noun
synonyms:

How cuticle is being used?