"cuticle" in the noun sense
1. cuticle
the dead skin at the base of a fingernail or toenail
2. epidermis, cuticle
the outer layer of the skin covering the exterior body surface of vertebrates
3. carapace, shell, cuticle, shield
hard outer covering or case of certain organisms such as arthropods and turtles
Source: WordNet® (An amazing lexical database of English)
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