propylene glycol

noun

Chemistry.

1. a colorless, viscous, hygroscopic liquid, C 3 H 8 O, used chiefly as a lubricant, as an antifreeze, as a heat transfer fluid, and as a solvent for fats, oils, waxes, and resins.

propylene glycol

noun

1. Systematic name: 1,2-dihydroxypropane. a colourless viscous hydroscopic sweet-tasting compound used as an antifreeze and brake fluid. Formula: CH 3 CH(OH)CH 2 OH

propylene glycol

1. A colorless, viscous liquid used in antifreeze solutions, in hydraulic fluids, and as a solvent. Unlike ethylene glycol, it is not toxic and is also used in foods, cosmetics, and oral hygiene products. Chemical formula: C ₃ H ₈ O ₂ .

Word History and Origins

Origin of propylene glycol¹

First recorded in 1880–85