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Dictionary of Cancer Terms
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polymorphism (PAH-lee-MOR-fih-zum)

 A common change in the genetic code in DNA. Polymorphisms can have a harmful effect, a good effect, or no effect. Some polymorphisms have been shown to increase the risk of certain types of cancer.

Previous Definitions:polycythemia vera, polyethylene glycosylated recombinant human megakaryocyte growth and development factor, polyglutamate camptothecin, polymer, polymerase chain reaction
Next Definitions:polymorphonuclear leukocyte, polymyositis, polyneuritis, polyp, polypectomy