pro·​pyl·​ene | \ ˈprō-pə-ˌlēn How to pronounce propylene (audio) \

Definition of propylene

: a flammable gaseous hydrocarbon C3H6 obtained by cracking petroleum hydrocarbons and used chiefly in organic synthesis

Examples of propylene in a Sentence

Recent Examples on the Web

Indorama will purchase Huntsman's segment that produces propylene oxide, a chemical commonly used for insulation and comfort applications in home furniture, building construction and automotive industry. Marissa Luck, Houston Chronicle, "Huntsman to sell chemical intermediate business for $2 billion," 8 Aug. 2019 The existing Flint Hills plant produces common building blocks of plastic, ethylene and propylene as well as the chemical cyclohexane. Marissa Luck, Houston Chronicle, "Motiva to buy Flint Hills' Port Arthur chemical plant," 19 Aug. 2019 The facility processes light hydrocarbons including propane and propylene, materials used to make plastic and industrial products. Juan A. Lozano, USA TODAY, "Explosion, fire injures 37 at Exxon Mobil refinery in Texas," 31 July 2019 ExxonMobil Baytown Area said a unit processing propane and propylene burst into flames late Wednesday morning at the Olefins plant, forcing the city to issue a shelter-in-place order, according to Fox 26. Fox News, "Explosion, fire injure 37 at Houston-area ExxonMobil refinery," 31 July 2019 The molecule, propylene oxide, was found floating in a cloud of dust and gas known as Sagittarius B2 and is one of the most structurally intricate chemicals found in space to date. Quanta Magazine, "Interstellar Find Adds Life to Old Debate," 20 June 2016 With propylene’s optimal density and performance values, the Vector-R can keep its first stage diameter to just over a meter in size, with smaller fuel tanks. Eric Berger, Ars Technica, "After a decade of testing, propylene rocket fuel may be ready for prime time," 25 Sep. 2018 But overall, the nation's total petroleum stocks still managed to dip by 5.5 million barrels overall though thanks to declines in other oils, propane and propylene supplies. Jordan Blum, Houston Chronicle, "U.S. oil inventories keep falling, but gasoline stockpiles grow," 10 Jan. 2018 Vector has received a patent for its liquid oxygen-propylene rocket engine, three of which will power its orbital Vector-R rocket, Ars reports. Eric Berger, Ars Technica, "Rocket Report: SpaceX gets Moon launches, South Korean rocket, BE-4 wins," 28 Sep. 2018

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

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First Known Use of propylene

1850, in the meaning defined above

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Last Updated

21 Oct 2019

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Time Traveler for propylene

The first known use of propylene was in 1850

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More Definitions for propylene


pro·​pyl·​ene | \ ˈprō-pə-ˌlēn How to pronounce propylene (audio) \

Medical Definition of propylene

: a flammable gaseous hydrocarbon C3H6 obtained by cracking petroleum hydrocarbons and used chiefly in organic synthesis

called also propene

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