epidermis

noun
epi·​der·​mis | \ ˌe-pə-ˈdər-məs How to pronounce epidermis (audio) \

Definition of epidermis

1a : the outer epithelial layer of the external integument of the animal body that is derived from the embryonic epiblast specifically : the outer nonsensitive and nonvascular layer of the skin of a vertebrate that overlies the dermis
b : any of various animal integuments
2 : a thin surface layer of tissue in higher plants formed by growth of a primary meristem

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Epidermis includes the Greek prefix epi-, meaning "outer;" thus, the epidermis overlies the dermis, or inner layer of skin. The epidermis itself consists of four or five layers; the outermost layer is made of dead cells, which are being shed continuously. The epidermis acts as a physical barrier—a protective wrap over the body's surface, which, by preventing water loss, allows vertebrates to live on land.

Examples of epidermis in a Sentence

Recent Examples on the Web Besides looking dewy and plump, hydrated skin is also more resilient against environmental elements and free radicals that can harm your skin’s epidermis, or its outer layer. Sydney Poe, chicagotribune.com, 4 Apr. 2021 Infusion of high actives and enzymes also boost the regeneration of the epidermis. Bianca Salonga, Forbes, 18 May 2021 To avoid aggravation, Czech recommends taking a minimal approach to physical exfoliation, which can cause micro tears on the epidermis if you get carried away. Lauren Valenti, Vogue, 3 May 2021 As the skin is the primary interface between our body and the external environment, its most critical role is to provide a strong physiological barrier, which is mediated by the outermost layer of the epidermis, the stratum corneum. Alex Zhavoronkov, Forbes, 27 Apr. 2021 Ashy signifies not only a dry epidermis but also a careless lack of self-upkeep and communal neglect. Andrea Plaid, Vogue, 8 Mar. 2021 But the majority will be pushed down from just underneath the epidermis to further layers of the skin, causing damage along the way. Sydney Poe, chicagotribune.com, 7 Apr. 2021 This is because peels unravel the topmost layer of the epidermis to allow ingredients to penetrate better. Bianca Salonga, Forbes, 8 Apr. 2021 Acne masks work to unclog pores and treat breakouts by drawing out oil and water through the epidermis. Sydney Poe, chicagotribune.com, 7 Apr. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'epidermis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of epidermis

1626, in the meaning defined at sense 1a

History and Etymology for epidermis

Late Latin, from Greek, from epi- + derma skin — more at derm-

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Time Traveler for epidermis

Time Traveler

The first known use of epidermis was in 1626

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Statistics for epidermis

Last Updated

5 Jun 2021

Cite this Entry

“Epidermis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/epidermis. Accessed 22 Jun. 2021.

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More Definitions for epidermis

epidermis

noun

English Language Learners Definition of epidermis

medical : the outer layer of skin

epidermis

noun
epi·​der·​mis | \ ˌe-pə-ˈdər-məs How to pronounce epidermis (audio) \

Kids Definition of epidermis

1 : a thin outer layer of skin covering the dermis
2 : any of various thin outer layers of plants or animals

epidermis

noun
epi·​der·​mis | \ -ˈdər-məs How to pronounce epidermis (audio) \

Medical Definition of epidermis

1 : the outer epithelial layer of the external integument of the animal body that is derived from the embryonic epiblast specifically : the outer nonsensitive and nonvascular layer of the skin of a vertebrate that overlies the dermis
2 : any of various animal integuments

More from Merriam-Webster on epidermis

Nglish: Translation of epidermis for Spanish Speakers

Britannica English: Translation of epidermis for Arabic Speakers

Britannica.com: Encyclopedia article about epidermis

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