Many countries issued such numbers for a singular purpose, but over time, they become a de facto national identification number. For example, the United States developed its Social Security number system as a means of organizing disbursing of Social Security benefits.
Freebase (0.00 / 0 votes) Rate this definition: Scleritis. Scleritis is a serious inflammatory disease that affects the white outer coating of the eye, known as the sclera.
Definition and etiology. Scleroderma, or systemic sclerosis (SSc), is a chronic multisystem autoimmune disease characterized by a vasculopathy, diffuse fibrosis of skin and various internal organs, and immune abnormalities.ystemic scleroderma is a rare disorder, with an annual incidence in the United States of about 20 cases per 1 million adults. Several studies have estimated the prevalence of systemic sclerosis in the United States to be around 240 cases per 1 million adults.