NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,041 terms related to cancer and medicine.

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PEG
A polymer made by joining molecules of ethylene oxide and water together in a repeating pattern. PEG can be a liquid or a waxy solid. In medicine, forms of PEG can be used in ointments, in drugs or substances to make them stay in the body longer, or in laxatives. Also called polyethylene glycol.