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xeroderma pigmentosum

[pig-muh n-toh-suh m] /ˌpɪg mənˈtoʊ səm/
noun, Pathology
1.
a rare inherited disease characterized by sensitivity to ultraviolet light, exposure resulting in lesions and tumors of the skin and eyes.
Origin
1880-1885
1880-85; < Neo-Latin: pigmented xeroderma; see pigment, -ose1
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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xeroderma-pigmentosum in Medicine

xeroderma pigmentosum xeroderma pig·men·to·sum (pĭg'mən-tō'səm, -měn-)
n.
A rare hereditary skin disorder caused by a defect in the enzymes that repair DNA damaged by ultraviolet light and resulting in hypersensitivity to the carcinogenic effect of ultraviolet light.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for xeroderma-pigmentosum

xeroderma pigmentosum

rare, recessively inherited skin condition in which resistance to sunlight and other radiation beyond the violet end of the spectrum is lacking. On exposure to such radiation the skin erupts into numerous pigmented spots, resembling freckles, which tend to develop into multiple carcinomas. The condition may occur in mild or severe forms. Protection from direct sunlight and surgical destruction of precancerous or established malignant lesions are the prescribed treatment

Learn more about xeroderma pigmentosum with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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