Definition of parapsoriasis in US English:

parapsoriasis

noun

Medicine
  • Any of a group of chiefly chronic skin diseases characterized by the presence of scaly lesions thought to resemble those of psoriasis, several of which are now recognized to be caused by benign or pre-malignant clonal proliferation of T cells.

Origin

Early 20th century; earliest use found in British Journal of Dermatology. From French parapsoriasis from para- + psoriasis.

Pronunciation

parapsoriasis

/ˌparəsəˈrʌɪəsɪs/