Glycols, also known as diols, are a group of organic compounds that contain two hydroxyl (-OH) groups on different carbon atoms. Glycols are widely used in various industrial processes such as the production of solvents, antifreeze, plasticizers, and detergents. There are several synonyms for glycols, including diglycols, ethanediol, 1,2-dihydroxyethane, ethylene alcohol, and ethylene glycol. These synonyms refer to the same chemical compound, but they may be used interchangeably depending on the context. Glycols are versatile compounds that have many industrial applications, and their synonyms are useful in different fields of chemistry and engineering.