epidermis

noun

epi·​der·​mis ˌe-pə-ˈdər-məs How to pronounce epidermis (audio)
1
a
: 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

Did you know?

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 Warts originate from the top layer of skin, the epidermis. Heather L. Brannon, Md, Verywell Health, 7 Sep. 2023 Luckily for those of us with a sensitive epidermis, The Inkey List’s slow-release Retinol Anti-Aging Serum is gentle and effective. Cai Cramer, Peoplemag, 23 Oct. 2023 Scott Peterson Stomata in peace lily leaf epidermis. Jennifer Ouellette, Ars Technica, 17 Oct. 2023 How is Ephemeral Tattoo different from other semi-permanent tattoos on the market? BP: Most semi permanent or temporary tattoos on the market are placed on the epidermis of the skin which is the very surface of the skin. Amy Rosner, Peoplemag, 11 Sep. 2023 In comparison to any other skin procedures, microdermabrasion doesn’t go as deep, just to the top layer of the skin, a.k.a., the epidermis, Dr. Jegasothy adds. Addison Aloian, Women's Health, 2 Aug. 2023 This provides your practitioner with visuals of the skin’s dermis, epidermis, and tissue layers — a view that is unique to the device. Audrey Noble, Allure, 15 Aug. 2023 Your epidermis is showing in new episodes of the medical series. Los Angeles Times Staff, Los Angeles Times, 9 June 2023 As the 1933 Fair was planned, the closest thing to a women’s exhibit would have been the epidermis Sally Rand revealed during her notorious fan dance. Ron Grossman, Chicago Tribune, 14 May 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'epidermis.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

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

First Known Use

1626, in the meaning defined at sense 1a

Time Traveler
The first known use of epidermis was in 1626

Dictionary Entries Near epidermis

Cite this Entry

“Epidermis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/epidermis. Accessed 6 Dec. 2023.

Kids Definition

epidermis

noun
epi·​der·​mis ˌep-ə-ˈdər-məs How to pronounce epidermis (audio)
1
: the thin outer layer of the animal body that in vertebrates forms an insensitive covering over the dermis
2
: a thin surface layer of protecting cells in seed plants and ferns

Medical Definition

epidermis

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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!