xeroderma pigmentosum
xe·ro·der·mapigmentosum
noun
1.
a rare genetic condition characterized by an eruption of exposed skin occurring in childhood and photosensitivity with severe sunburn; inherited as a recessive autosomal trait in which DNA repair processes are defective so they are more likely to chromosome breaks and cancers when exposed to ultraviolet light
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WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.