glycol Or diol, a class of dihydric alcohols, the lower members being viscous, hygroscopic liquids. Ethylene glycol is the most important; propylene glycol has similar uses, but being nontoxic is also used in foods, pharmaceuticals, and cosmetics. Related category • ORGANIC CHEMISTRY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) |