xeroderma pigmentosum

1 definition found

xeroderma pigmentosum - WordNet (r) 2.1 (2005) :

  xeroderma pigmentosum
      n 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