psoriasis

noun

pso·​ri·​a·​sis sə-ˈrī-ə-səs How to pronounce psoriasis (audio)
: a chronic skin disease characterized by circumscribed red patches covered with white scales
psoriatic adjective or noun

Examples of psoriasis 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.
Skin Issues Some skin conditions—particularly those associated with immune responses, including eczema, psoriasis, and rosacea—may be linked to gut health. Rena Goldman, Health, 17 Feb. 2026 For example, Type 1 diabetes is caused by T cells attacking pancreatic cells, and psoriasis occurs when T cells are activated against skin cells. Shyam Bansal, The Conversation, 5 Feb. 2026 For people with sensitive skin, eczema, psoriasis, or contact allergies, gloves are not just helpful. Jessica Safavimehr, Southern Living, 30 Jan. 2026 In some cases, those with conditions like psoriasis may also want to avoid BIAB nails. Tori Crowther, Refinery29, 29 Jan. 2026 See All Example Sentences for psoriasis

Word History

Etymology

New Latin, from Greek psōriasis, from psōrian to have the itch, from psōra itch; akin to Greek psēn to rub

First Known Use

circa 1684, in the meaning defined above

Time Traveler
The first known use of psoriasis was circa 1684

Browse Nearby Words

Cite this Entry

“Psoriasis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/psoriasis. Accessed 21 Feb. 2026.

Kids Definition

psoriasis

noun
pso·​ri·​a·​sis sə-ˈrī-ə-səs How to pronounce psoriasis (audio)
: a skin disease characterized by red patches often covered with white scales

Medical Definition

psoriasis

noun
pso·​ri·​a·​sis sə-ˈrī-ə-səs How to pronounce psoriasis (audio)
plural psoriases -ˌsēz How to pronounce psoriasis (audio)
: a chronic skin disease characterized by circumscribed red patches covered with white scales

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