- a common chronic, inflammatory skin disease characterized by scaly patches.
Origin of psoriasis
1675–85; < New Latin < Greek psōríāsis, equivalent to psōriā-, variant stem of psōriân to have the itch (derivative of psṓra itch) + -sis -sis
Also called psora.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a skin disease characterized by the formation of reddish spots and patches covered with silvery scales: tends to run in families
C17: via New Latin from Greek: itching disease, from psōra itch
Word Origin and History for psoriatic
1680s, from medical Latin psoriasis, in Late Latin "mange, scurvy," from Greek psoriasis "being itchy," from psorian "to have the itch," from psora "itch, mange, scab," related to psen "to rub" (see psilo-). Related: Psoriatic.
Online Etymology Dictionary, © 2010 Douglas Harper
- Of, relating to, or characteristic of psoriasis.
- A noncontagious inflammatory skin disease characterized by recurring reddish patches covered with silvery scales.
- A chronic, inflammatory skin disease in which recurring reddish patches, often covered with silvery scales, appear especially on the knees, elbow, scalp and trunk. Psoriasis is noncontagious and is inheritable.