oc·tane | \ˈäk-ˌtān \

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

The festival, with three dozen vendor booths and a high-octane drag show, ended up covering two blocks. Will Higgins, Indianapolis Star, "In Pence's hometown of Columbus, a gay pride festival draws a larger than expected crowd," 14 Apr. 2018 VP Racing Fuel is a specialty fuel company that buys petroleum products and modifies it to create specialty race fuels and fuel blending products to boost octane, clean fuel systems or stabilize fuel. Rye Druzin, San Antonio Express-News, "San Antonio racing fuel maker opening retail shops in Mexico," 11 June 2018 The pop star, 28, took the stage at Soldier Field on Saturday night, delivering high-octane, nonstop performances of hit after hit. Jeff Nelson, PEOPLE.com, "Taylor Swift Dazzles Chicago, Dancing in the Rain and Sharing Heartfelt Pride Month Message," 3 June 2018 Vardy's high octane, relentless style of play is said to have impressed Atléti boss Diego Simeone, who sees the England international as an ideal addition to his squad. SI.com, "Atlético Madrid Ponder Bold Move for Leicester City Talisman as Club Prepare for Griezmann Exit," 20 May 2018 Higher levels of octane allow engines to run at higher compression ratios without knocking. Mark Phelan, chicagotribune.com, "Don't waste money buying premium gas for vehicles that don't need it, AAA says," 21 Dec. 2017 There has been a lot to like about this World Cup: plenty of goals, high-octane entertainment and even Russia putting on a friendly face for the throng of traveling fans. Martin Rogers, USA TODAY, "The chances a long-suffering nation wins the World Cup is greater than normal," 4 July 2018 Such rooms are rare these days in Old Town, where the old eateries, dive bars and funky stores have been pushed out, mostly, by high-octane bars and clubs. Chris Jones, chicagotribune.com, "Michael Shannon returns to the role he played in 1995 for Red Orchid's 25th season," 3 July 2018 Tavares joined a high-octane Toronto team this summer in the hockey version of The Decision. Christopher L. Gasper, BostonGlobe.com, "The Lions in the Super Bowl, a .400 hitter in a season, and other sports dreams I’d like to see become reality," 14 July 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

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Statistics for octane

Last Updated

7 Oct 2018

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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

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Britannica.com: Encyclopedia article about octane

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not any or not one

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