oc·​tane | \ ˈäk-ˌtān How to pronounce octane (audio) \

Definition of octane

1 : any of several isomeric liquid alkanes C8H18

Examples of octane in a Sentence

an octane rating of 90

Recent Examples on the Web

On a team known for its stoic execution — for the steel-handed discipline to Jay Wright’s close-to-the-vest system — DiVincenzo is a highly emotional, high-octane wild card. Marcus Hayes, Philly.com, "Villanova's Donte DiVincenzo is NCAA championship game star with record 31 points | Marcus Hayes," 2 Apr. 2018 Two jacked-up, engine-roaring, high-octane machines, chained together and going full throttle in opposite directions. Rich Pope, OrlandoSentinel.com, "Trucks Gone Wild predict Super Bowl winner with a Mega Truck tug-of-war," 31 Jan. 2018 Higher-octane businesses such as securities trading are less lucrative and less valued by shareholders, who instead want steadier, subscription-like businesses that will do well in hot markets and cold. Liz Hoffman, WSJ, "Morgan Stanley, in Its Biggest Deal Since Crisis, Courts Future Millionaires," 11 Feb. 2019 Surprisingly funny plot knows its place in this high-octane game—and enjoys a stellar voice cast. Sam Machkovech, Ars Technica, "Sunset Overdrive review: Ride the rails to kaboom-town (finally on PCs, too)," 17 Nov. 2018 Watch the video above to get a fuller sense of Taylor’s far-reaching talents and see all the high-octane, ball-ready looks in their full glory. Rachel Hahn, Vogue, "Teyana Taylor’s New Video Is the Cinderella Glow-Up Story We Need Right Now," 24 Jan. 2019 The high-octane political / financial thriller Billions offered two of the more intriguing takes, reflecting the series’ main characters: US Attorney Chuck Rhoades (Paul Giamatti) and hedge-fund manager Bobby Axelrod (Damian Lewis). Noel Murray, The Verge, "The 20 best TV series of 2018," 12 Dec. 2018 Directed by James Wan — the master of high-octane nightmare fuel like Insidious, The Conjuring and Saw — Aquaman contains moments of pure joy, stylish fight-sequence hairography, and unabashed fidelity to cheese and fantasy. Alex Abad-santos, Vox, "Aquaman goes for broke and lands somewhere between overstuffed marine opera and cheesy comic book fun," 11 Dec. 2018 Go to Ofer Ketter for high-octane adventures, OFER@ORIGENESCAPES.COM. Klara Glowczewska, Town & Country, "The Best Places to Travel in 2019," 7 Dec. 2018

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

1867, in the meaning defined at sense 1

History and Etymology for octane

International Scientific Vocabulary

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Statistics for octane

Last Updated

25 Mar 2019

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Time Traveler for octane

The first known use of octane was in 1867

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English Language Learners Definition of octane

: a chemical in petroleum that is used to rate the quality of different kinds of gasoline

More from Merriam-Webster on octane

Rhyming Dictionary: Words that rhyme with octane

Britannica.com: Encyclopedia article about octane

Comments on octane

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


to boil down or concentrate

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