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Epidermis Meaning: Definition, Examples, and Translations

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epidermis

[ˌɛpɪˈdɜrmɪs ]

Definitions

Context #1 | Noun

skin layer

The epidermis is the outermost layer of the skin, providing a waterproof barrier and serving as protection against environmental factors.

Synonyms

cuticle, dermis, outer layer of skin.

Which Synonym Should You Choose?

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Word Description / Examples
epidermis

Epidermis is best used in scientific or medical discussions regarding the outermost layer of skin in humans and animals.

  • The epidermis acts as a protective barrier against environmental hazards
  • The wound only affected the epidermis and not the deeper layers of skin
outer layer of skin

Outer layer of skin is a general term often used in everyday conversation to describe the surface layer of skin without using scientific terminology.

  • She applied sunscreen to protect the outer layer of her skin
  • The outer layer of skin had become dry and flaky
cuticle

Cuticle is often used to refer to the outer layer found on plants, as well as the thin layer of skin found at the base of fingernails or toenails in humans.

  • She pushed back her cuticles before painting her nails
  • The waxy cuticle on plants helps to reduce water loss
dermis

Dermis is used when discussing the thicker, deeper layer of skin that lies beneath the epidermis and contains nerve endings, glands, and blood vessels.

  • The tattoo needle must penetrate the dermis to make the ink permanent
  • Sunburn can damage both the epidermis and the dermis, causing pain and peeling

Examples of usage

  • The epidermis regenerates itself every 27 days.
  • UV rays can damage the epidermis.
  • The epidermis contains different types of cells, including keratinocytes.
  • Skin cancer can originate in the epidermis.
  • Maintaining a healthy epidermis is essential for overall skin health.
Context #2 | Noun

biology

In biology, the epidermis refers to the outermost layer of cells covering an organism, such as plants.

Synonyms

outer layer of cells, surface layer.

Which Synonym Should You Choose?

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Word Description / Examples
epidermis

Primarily used in scientific or medical contexts to refer specifically to the outermost layer of skin cells in humans and animals.

  • The sunburn affected only the epidermis, causing redness and pain.
  • The epidermis plays a crucial role in protecting the body from pathogens.
outer layer of cells

Used in both scientific and general contexts to describe the outermost cellular layer of an organism, not limited to humans. It can refer to plants, animals, and other organisms.

  • The outer layer of cells protects the leaf from environmental stress.
  • The scientists studied the outer layer of cells in the lab sample.
surface layer

Typically used in both scientific and everyday contexts to describe the topmost layer of any material or surface, not necessarily biological. It is a broader term that can refer to a wide range of surfaces.

  • The surface layer of the paint began to crack.
  • The surface layer of the soil is rich in organic matter.

Examples of usage

  • The epidermis of a leaf protects the plant from dehydration.
  • Botanists study the epidermis of plants to understand their adaptations.
  • The epidermis of a fruit can be smooth or hairy.
  • Insects can damage the epidermis of plant leaves.
  • The epidermis of an onion bulb is thin and translucent.

Translations

To see the translation, please select a language from the options available.

Interesting Facts

Biology

  • The epidermis is primarily composed of keratinocytes, which produce keratin, a protein that makes skin waterproof.
  • It has no blood vessels, relying on the underlying dermis for nutrients through diffusion.
  • It contains specialized cells such as melanocytes, which produce melanin that gives skin its color.

Health & Medicine

  • Damage to the epidermis can lead to conditions like burns, cuts, or infections, making it crucial for overall health.
  • Skin care products often target the epidermis to improve skin texture and appearance, highlighting its importance in beauty regimes.

Cultural References

  • In many cultures, skin is seen as a canvas for self-expression, leading to the use of cosmetics and body art on the epidermis.
  • The concept of the 'skin' is often used metaphorically in literature to explore themes of identity and protection.

Environmental Science

  • The epidermis plays a key role in protecting the body from environmental pollutants and harmful UV rays.
  • Research into the epidermal barrier helps scientists develop better protective skin care solutions and sunblocks.

Origin of 'epidermis'

Main points about word origin

  • The word comes from the Greek 'epidermis,' where 'epi' means 'upon' and 'derma' means 'skin.'
  • In Latin, 'epidermis' refers to the outer skin layer, showing continuity in language through time.

The word 'epidermis' originates from the Greek words 'epi' (upon) and 'derma' (skin). It has been used in the English language since the mid-18th century. The study of the epidermis has been crucial in the fields of dermatology and botany, helping researchers understand the protective barriers of organisms and their adaptations to different environments.

Word Frequency Rank

At position #12,911, this word is part of sophisticated English vocabulary. It's useful for academic or professional contexts where precise language is needed.