Definition of psoriasis in US English:

psoriasis

noun

Medicine
  • A skin disease marked by red, itchy, scaly patches.

    • ‘Oral methotrexate tablets are commonly used for the treatment of rheumatoid arthritis and severe psoriasis.’
    • ‘Topical corticosteroid creams and ointments are applied to the skin to reduce inflammation in conditions such as eczema and psoriasis.’
    • ‘Psoralens sensitise the skin to ultraviolet light and are used in light therapy for vitiligo and psoriasis.’
    • ‘You might scratch the skin because it is itchy due to eczema or psoriasis inside the ear.’
    • ‘Fungal rashes can sometimes be confused with other skin conditions, such as psoriasis and eczema.’

Origin

Late 17th century: modern Latin, from Greek psōriasis, from psōrian ‘have an itch’, from psōra ‘itch’.

Pronunciation

psoriasis

/səˈrīəsəs//səˈraɪəsəs/