Entry: psoriatic (adj.)
In context: "...with sagging porches and psoriatic paint-jobs or aluminum siding gone carbuncular from violent temperature-swings..."
Definition: Of, relating to, or associated with psoriasis; affected with psoriasis.
Other: This got me wondering how many words in Scrabble (North American version) begin with PS - 267, as it turns out. See: PSAMMITE, PSCHENT, and a bunch of PSEUDO- words with PSEUDOSCORPION being one of the best.
SNOOT score: 1
Source: Oxford English Dictionary