PSORIASIS

psoriasis

(noun) a chronic skin disease characterized by dry red patches covered with scales; occurs especially on the scalp and ears and genitalia and the skin over bony prominences

Source: WordNet® 3.1


Etymology

Noun

psoriasis (countable and uncountable, plural psoriases)

(disease) A noncontagious disease whose main symptom is gray or silvery flaky patches on the skin which are red and inflamed underneath when scratched.

Source: Wiktionary


Pso*ri"a*sis, n. Etym: [NL., fr. Gr. (Med.) (a) The state of being affected with psora. [Obs.] (b) A cutaneous disease, characterized by imbricated silvery scales, affecting only the superficial layers of the skin.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

12 February 2025

MEGACOLON

(noun) an abnormal enlargement of the colon; can be congenital (as in Hirschsprung’s disease) or acquired (as when children refuse to defecate)


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