Polyethylene glycol is a polymer composed of repeating ethylene glycol units, used as a surfactant, laxative, pharmaceutical excipient, and in industrial applications. It is typically discussed in contexts of chemistry, biology, and medicine, where its properties—water solubility, biocompatibility, and molecular weight variability—are pivotal. The term refers to polymers of varying chain lengths, often abbreviated PEG, and it is pronounced as a single, multi-syllabic word in scientific usage.
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