mucopolysaccharidosis

noun

mu·​co·​poly·​sac·​cha·​ri·​do·​sis -ˌsak-ə-rī-ˈdō-səs 

plural mucopolysaccharidoses -ˌsēz 

: any of a group of genetically determined disorders (as Hunter's syndrome and Hurler syndrome) of glycosaminoglycan metabolism that are characterized by the accumulation of glycosaminoglycans in the tissues and their excretion in the urine

called also gargoylism, lipochondrodystrophy