noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Any of four diols derived from propane, usually the forms 1,2-propanediol and 1,3-propanediol, but especially 1,2-propanediol known as propylene glycol
2. 2
   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 wordnet

Synonyms

All synonyms

propylene glycolpropylene glycolpropyleneglycol

Etymology

From propane + diol.

Related phrases

1,1-propanediol / propane-1,1-diol1,2-propanediol / propane-1,2-diol1,3-propanediol / propane-1,3-diol2,2-propanediol / propane-2,2-diolpropylene glycol

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.