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Related to propanediol: propylene glycol
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|Noun||1.||propanediol - a sweet colorless, viscous, hygroscopic liquid used as an antifreeze and in brake fluid and also as a humectant in cosmetics and personal care items although it can be absorbed through the skin with harmful effects|
antifreeze - a liquid added to the water in a cooling system to lower its freezing point
humectant - any substance that is added to another substance to keep it moist