propylene glycol

noun

Definition of propylene glycol

: a sweet hygroscopic viscous liquid C3H8O2 made especially from propylene and used especially as an antifreeze and solvent, in brake fluids, and as a food preservative

Examples of propylene glycol in a Sentence

Recent Examples on the Web

One caveat: Most vaporizers use either propylene glycol or vegetable glycerin (PG or VG). Laurel Leicht, Marie Claire, "An Expert Answers All Your Questions About CBD," 26 Mar. 2019 Juul’s e-cigarette liquid contains only five: glycerol, propylene glycol, nicotine, benzoic acid, and food-grade flavoring. Jia Tolentino, The New Yorker, "The Promise of Vaping and the Rise of Juul," 7 May 2018 Vape juices are typically made by mixing nicotine and flavorings with a solvent — often propylene glycol, vegetable glycerine, or a mixture of the two. Rachel Becker, The Verge, "Vape flavors can make nasty new chemicals in your e-liquid," 18 Oct. 2018 Further, Zeichner says that ingredients like propylene glycol, benzene, benzoic acid, and chlorhexidine can potentially cause irritation and even allergic contact dermatitis. Sofia Barrett-ibarria, Allure, "Your Guide to Body-Safe Lubes and What They're Made Of," 21 Sep. 2018 Juul pods include glycerol, propylene glycol, natural oils, extracts and flavor, nicotine and benzoic acid, company officials say, but not diacetyl, a potentially harmful chemical used in other vaping products for flavoring. Jill Tucker, SFChronicle.com, "As Juul vaping surges among teens, health concerns grow," 27 May 2018 The ingredients of the liquid vary, but generally include nicotine (though some are nicotine free), chemicals to vaporize the nicotine (like propylene glycol and vegetable glycerin), additives and flavoring. Scientific American, "E-Cigs and Second-Hand Vaping," 18 May 2018 Some of them heat up to 800 degrees and the flavors are made with propylene glycol, which can turn into formaldehyde when heated. Kathryn Tuggle, Good Housekeeping, "The Rise Of The "Personal Diffuser" Stick—Is Essential Oil Vaping Safe?," 19 Sep. 2017 But vaping liquids contain additives such as propylene glycol and glycerol that can form carcinogenic compounds when they are heated. Author: Kate Zernike, Anchorage Daily News, "Devices to quit smoking become the devices teenagers can’t quit," 2 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'propylene glycol.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of propylene glycol

1870, in the meaning defined above

Keep scrolling for more

Learn More about propylene glycol

Statistics for propylene glycol

Last Updated

9 Apr 2019

Look-up Popularity

Time Traveler for propylene glycol

The first known use of propylene glycol was in 1870

See more words from the same year

Keep scrolling for more

More Definitions for propylene glycol

propylene glycol

noun

Medical Definition of propylene glycol

: a sweet hygroscopic viscous liquid C3H8O2 made especially from propylene and used especially as an antifreeze and solvent, in brake fluids, and as a food preservative

More from Merriam-Webster on propylene glycol

Britannica.com: Encyclopedia article about propylene glycol

Comments on propylene glycol

What made you want to look up propylene glycol? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to mark by some ceremony or observation

Get Word of the Day daily email!

Test Your Vocabulary

Challenging Vocabulary Quiz Returns!

  • stylized drawing of woman pole vaulting across gap to get trophy
  • Which is a synonym of fuliginous?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!