ethylene glycol n.
A colorless syrupy alcohol used as an antifreeze in cooling and heating systems.
|ethylene glycol (glī'kôl') Pronunciation Key
A poisonous, syrupy, colorless alcohol used as an antifreeze in heating and cooling systems that use water. Ethylene glycol is chemically like ethanol but has two hydroxyl (OH) groups instead of one. Also called glycol. Chemical formula: C2H6O2.