dermatitis

noun

der·​ma·​ti·​tis ˌdər-mə-ˈtī-təs How to pronounce dermatitis (audio)
plural dermatitides ˌdər-mə-ˈti-tə-ˌdēz How to pronounce dermatitis (audio) or dermatitises
: inflammation of the skin

Did you know?

Dermatitis usually appears as a rash, and may cause itching, blisters, swelling, and often scabbing and scaling. It often marks an allergic reaction of some kind. Contact dermatitis is caused by something (often a chemical) touching the skin. Atopic dermatitis usually affects the insides of the elbows, the backs of the knees, and the face; generally resulting from an inherited sensitivity, it's often triggered by inhaling something. Eczema, psoriasis, and dandruff are all forms of dermatitis. Even in the worst cases, dermatitis isn't infectious and doesn't produce serious health consequences.

Examples of dermatitis in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Irritant contact dermatitis is one of the most common skin diseases characterized [by] redness, skin swelling and itching. Jasmine Laws, MSNBC Newsweek, 27 Oct. 2025 The commercials that run during post-season baseball are rife with talk of dermatitis, dehydration, and wheezing. Scott Simon, NPR, 25 Oct. 2025 One application of the thick cream, and the irritation and redness from my rash (which turned out to be perioral dermatitis) significantly improved. Erin Mayer, Better Homes & Gardens, 21 Oct. 2025 The service aims to treat common kids’ illnesses such as pink eye, lice, and certain skin issues, including eczema, bug bites, and contact dermatitis. Morgan Chittum,matthew J. Belvedere, CNBC, 16 Oct. 2025 See All Example Sentences for dermatitis

Word History

First Known Use

1876, in the meaning defined above

Time Traveler
The first known use of dermatitis was in 1876

Browse Nearby Words

Cite this Entry

“Dermatitis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dermatitis. Accessed 30 Oct. 2025.

Kids Definition

dermatitis

noun
der·​ma·​ti·​tis ˌdər-mə-ˈtīt-əs How to pronounce dermatitis (audio)
plural dermatitides -ˈtit-ə-ˌdēz How to pronounce dermatitis (audio) or dermatitises
: inflammation of the skin

Medical Definition

dermatitis

noun
der·​ma·​ti·​tis ˌdər-mə-ˈtīt-əs How to pronounce dermatitis (audio)
plural dermatitises or dermatitides -ˈtit-ə-ˌdēz How to pronounce dermatitis (audio)
: inflammation of the skin

called also dermitis

dermatitic adjective

More from Merriam-Webster on dermatitis

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!