xeroderma pigmentosum
/ˌpɪgmenˈtəʊsəm/noun
mass noun
- a rare hereditary defect of the enzyme system that repairs DNA after damage from ultraviolet rays, resulting in extreme sensitivity to sunlight and a tendency to develop skin cancer着色性皮萎缩, 着色性干皮病。
词源
late 19th cent.: pigmentosum, neuter of Latin pigmentosus 'pigmented'.