psoriasis[sə rī′ə sis]
Origin of psoriasisModern Latin ; from Classical Greek psōriasis ; from psōra, an itch, akin to psēn, to rub, scratch, psammos, sand
Origin of psoriasisGreek psōriāsis, itch, mange, from psōriān, to have the itch, from psōrā, itch.
(countable and uncountable, plural psoriases)
- (pathology) A noncontagious disease whose main symptom is gray or silvery flaky patches on the skin which are red and inflamed underneath when scratched.
From Ancient Greek ψωρίασις (psōriasis), from ψώρα (psōra, “itch”) (English psora) + -σις (-sis, “nouns of action”) (English -sis).