1. converted into or resembling horn; hardened and thickened like horn tissue
Usage: technical/medical; often used in biology and dermatology

Examples

• The cornified layer of skin provides a protective barrier against the environment.
• Calluses form when skin becomes cornified from repeated friction.
• The cornified cells at the surface of the epidermis are constantly shed.
• Certain reptiles have cornified scales that offer protection.
• The cornified tissue of the nail plate is composed of dead keratin-filled cells.