noun🔗ShareA clear, hygroscopic, odorless liquid, which is described by chemical structure formula HO-CH2-CH2-O-CH2-CH2-OH. it is toxic to human and animals."Because diethylene glycol is toxic, manufacturers must carefully test products like antifreeze to ensure it isn't present. "compoundsubstancechemistrytechnicalChat with AIVocabulary GamePractice Reading