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glycerol

American  
[glis-uh-rawl, -rol] / ˈglɪs əˌrɔl, -ˌrɒl /

noun

  1. a colorless, odorless, syrupy, sweet liquid, C 3 H 8 O 3 , usually obtained by the saponification of natural fats and oils: used for sweetening and preserving food, in the manufacture of cosmetics, perfumes, inks, and certain glues and cements, as a solvent and automobile antifreeze, and in medicine in suppositories and skin emollients.


glycerol British  
/ ˈɡlɪsəˌrɒl /

noun

  1. Also called (not in technical usage): glycerine.   glycerin.  a colourless or pale yellow odourless sweet-tasting syrupy liquid; 1,2,3-propanetriol: a by-product of soap manufacture, used as a solvent, antifreeze, plasticizer, and sweetener ( E422 ). Formula: C 3 H 8 O 3

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

glycerol Scientific  
/ glĭsə-rôl′ /
  1. A sweet, syrupy liquid obtained from animal fats and oils or by the fermentation of glucose. It is used as a solvent, sweetener, and antifreeze and in making explosives and soaps. Glycerol consists of a propane molecule attached to three hydroxyl (OH) groups. Also called glycerin, glycerine. Chemical formula: C 3 H 8 O 3 .


Etymology

Origin of glycerol

First recorded in 1880–85; glycer(in) + -ol 1

Vocabulary lists containing glycerol

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

"Our study has revealed for the first time that bacteria supplied with glycerol as a carbon source can convert toxic uranium dissolved in water into a stable chemical compound," says Krawczyk-Bärsch.

From Science Daily Aug. 9, 2026

"Our group's investigations had already revealed that bacteria can use uranium dissolved in water for their metabolism when they have access to glycerol as a food source."

From Science Daily Aug. 9, 2026

That process releases glycerol, a molecule produced during fat metabolism.

From Science Daily May 12, 2026

The government watchdog said slushed ice drinks containing glycerol - a type of sweetener - were unsafe for young children, and consumption of them should be limited for children aged between seven and 10.

From BBC Jul. 17, 2025

The British procedure called for the use of 10 percent glycerol in the final mixture of semen and extender prior to freezing.

From Preservation of Bull Semen at Sub-Zero Temperatures by M. E. Friedman

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