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   Raynaud's disease

   /ˈreɪnəʊ/

   noun

   • 1. a disease characterized by spasm of the arteries in the extremities, especially the fingers (Raynaud's phenomenon). It is typically brought on by constant cold or vibration, and leads to pallor, pain, numbness, and in severe cases, gangrene.

   Word Origin late 19th century: named after Maurice Raynaud (1834–81), French physician.

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