Definition of "diethylene" []

• Two ethylene groups in a molecule (noun)

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• "But, in this case, a poison called diethylene glycol was substituted for glycerin imported from China."
• "In the United States in 2007 counterfeit toothpaste labelled "Colgate" was found to contain a chemical known as diethylene glycol which is used in anti-freeze and is said to pose a low-grade health risk."
• "Independent tests showed the China-made toothpaste contained a toxic chemical used to produce antifreeze called diethylene glycol, also known as DEG."