epidermis

/,epi'də:mis /

Thân thiện

A diagram shows the epidermis as the outermost layer of human skin.

Definition

1. Noun:
   • The outermost layer of the skin: The "epidermis" is the thin, protective outer layer of the skin that covers the body surface of vertebrates, including humans. It acts as a barrier against environmental damage, pathogens, and water loss.

Usage

• The "epidermis" is a biological and anatomical term. It is used in scientific, medical, and general contexts to describe the structure of skin.
• It is typically used as a singular, countable noun (e.g., ).

Examples

• Noun:
  • A sunburn damages the epidermis.
  • The epidermis is constantly renewing itself.
  • Scientists studied the cells of the epidermis.

Advanced Usage

• "epidermal" (adjective): Relating to or characteristic of the epidermis.
  • The cream is designed for epidermal repair.
• In botany, "epidermis" can also refer to the outermost layer of cells covering a plant's leaves, stems, and roots, though this is a distinct biological context from the primary definition for vertebrates.

Variants and Related Words

• Epidermal (adj): Pertaining to the epidermis.
• Epidermoid (adj): Resembling or derived from the epidermis.
• Epidermolysis (n): A condition involving the loosening or blistering of the epidermis.

Synonyms

• Cuticle (specifically for the outermost part of the epidermis in some contexts, or for plants/invertebrates).
• Outer skin layer.

Antonyms

• Dermis: The thick layer of skin beneath the epidermis.
• Hypodermis/Subcutis: The deepest layer of skin beneath the dermis.

Học thuật

Noun

1. the outer layer of the skin covering the exterior body surface of vertebrates

Từ đồng nghĩa

• cuticle