Which term describes the outermost layer of the epidermis composed of corneocytes?

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Stratum Corneum is the outermost layer of the epidermis and is composed of corneocytes. These corneocytes are flattened, dead keratinocytes filled with keratin and surrounded by lipids, creating a tough, water-resistant barrier. This layer protects against dehydration and environmental threats, and it continually renews as newer cells rise from the deeper epidermal layers and shed. That combination—outermost position, made up of corneocytes, and its barrier function—makes Stratum Corneum the correct term.