acet·​y·​lene | \ ə-ˈse-tᵊl-ən How to pronounce acetylene (audio) , -tᵊl-ˌēn \

Definition of acetylene

: a colorless gaseous hydrocarbon HC≡CH used chiefly in organic synthesis and as a fuel (as in welding and soldering)

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Other Words from acetylene

acetylenic \ ə-​ˌse-​tᵊl-​ˈē-​nik How to pronounce acetylene (audio) , -​ˈe-​nik \ adjective

Examples of acetylene in a Sentence

Recent Examples on the Web The Sun later said the blaze was started by a worker using an acetylene torch to repair an oil barge in the yard of the Chesapeake Marine Railway Co. at Philpot and Point streets. Jacques Kelly,, 24 Apr. 2021 What’s more, acetylene-munching microbes on Earth can draw energy from the organic compound. National Geographic, 6 Dec. 2019 The gun seen firing in the film is another mock-up which was not mounted on the helicopter and which consisted of metal tubing with spark plugs to ignite acetylene as it was blown through the barrels. Peter Opaskar, Ars Technica, 10 Jan. 2020 Where electricity was not available, the city used gas acetylene tanks to illuminate warning traffic safety signs. Jacques Kelly,, 19 Oct. 2019 But putting shaped clay in a kiln is less risky than the local artist’s current project: applying an acetylene torch to paper. Mark Jenkins, Washington Post, 19 July 2019 The Warped Perception folks experiment with using isopropyl alcohol and acetylene as fuels instead of gas, and the engine clearly doesn't care too much for those. Avery Thompson, Popular Mechanics, 16 Jan. 2017 Authorities initially said the explosion had been caused by a truck carrying acetylene, another extremely flammable compound, that had been entering a different facility near the Shenghua plant. Josh Chin, WSJ, 30 Nov. 2018 Other products made at the plant include PVC resins, caustic soda, hydrochloric acid, oxygen, chlorine, dissolved acetylene, coated kettle agent, water treatment chemicals and new building materials, according to the company website. Christopher Bodeen, The Seattle Times, 28 Nov. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'acetylene.' 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 acetylene

1851, in the meaning defined above

History and Etymology for acetylene

borrowed from French acétylène, from acétyle acetyl + -ène -ene

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Time Traveler for acetylene

Time Traveler

The first known use of acetylene was in 1851

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Statistics for acetylene

Last Updated

5 May 2021

Cite this Entry

“Acetylene.” Dictionary, Merriam-Webster, Accessed 22 Jun. 2021.

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English Language Learners Definition of acetylene

: a gas that burns with a very hot flame which is used to melt and connect pieces of metal


acet·​y·​lene | \ ə-ˈset-ᵊl-ən How to pronounce acetylene (audio) , -ᵊl-ˌēn How to pronounce acetylene (audio) \

Medical Definition of acetylene

: a colorless gaseous hydrocarbon HC≡CH made especially by the action of water on calcium carbide and used chiefly in organic synthesis and as a fuel (as in welding and soldering)

called also ethyne

Other Words from acetylene

acetylenic \ ə-​ˌset-​ᵊl-​ˈē-​nik How to pronounce acetylene (audio) , -​ˈen-​ik How to pronounce acetylene (audio) \ adjective

More from Merriam-Webster on acetylene

Nglish: Translation of acetylene for Spanish Speakers

Britannica English: Translation of acetylene for Arabic Speakers Encyclopedia article about acetylene


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