mucopolysaccharidosis noun1 •Any of a group of metabolic disorders caused by the absence or malfunction of lysosomal enzymes needed to break down glycosaminoglycans.The geneticist said Ryan had a rare genetic disorder called mucopolysaccharidosis I, or MPS I, with a wide-range of symptoms affecting multiple systems in the body. — 2017 formsmucopolysaccharidoses
