octane

noun

oc·​tane ˈäk-ˌtān How to pronounce octane (audio)
1
: any of several isomeric liquid alkanes C8H18
2

Examples of octane in a Sentence

an octane rating of 90
Recent Examples on the Web If your vehicle isn’t designed to run on higher octane fuels, then filling it with a higher octane fuel won’t necessarily result in more power or economy since the grade of fuel doesn’t impact the engine’s programming. Logan Carter / Jalopnik, Quartz, 27 Mar. 2024 Time for Truth showed plenty of early octane in his first two races, both sprints. Jay Ginsbach, Forbes, 24 Feb. 2024 Netsky Belgian producer Netsky delivered a high octane 50-minute set that immediately turned the dial all the way up to 11 and kept it there, incorporating selections from the bass, drum & bass and mainstage realms of dance music. Katie Bain, Billboard, 30 Jan. 2024 The collection drew inspiration from La Samaritaine’s diverse clientele and featured streamlined high octane silhouettes, froufrou flourishes and sporty, cold weather appropriate quilted puffers. Stephanie Hirschmiller, Forbes, 27 Jan. 2023 Currently, the national average for 87 octane gas (according to AAA) is about $3 per gallon, which means that hydrogen still costs more than double at the pump. Kristin Shaw, Popular Science, 17 Jan. 2024 It’s said to burn cleaner and have a higher octane level than pure gas. Chris Morris, Fortune, 21 Nov. 2023 The use of pure, electronic-grade octane was dictated by the necessity of not having free-moving ions that could leak electrons from the nano-arrays. IEEE Spectrum, 27 Oct. 2023 Adam Driver, Patrick Dempsey and Michael Mann gave an octane boost of star power to the 80th Venice Film Festival Thursday night, with their car racer biopic Ferrari welcomed warmly by the Lido audience. Scott Roxborough, The Hollywood Reporter, 31 Aug. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'octane.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

International Scientific Vocabulary

First Known Use

1867, in the meaning defined at sense 1

Time Traveler
The first known use of octane was in 1867

Dictionary Entries Near octane

Cite this Entry

“Octane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/octane. Accessed 19 Apr. 2024.

Kids Definition

octane

noun
oc·​tane ˈäk-ˌtān How to pronounce octane (audio)
1
: any of several liquid chemical compounds containing 8 carbon atoms and 18 hydrogen atoms
2
: a number that is used to measure the antiknock characteristics of gasoline with a higher number indicating a smaller chance of knocking

More from Merriam-Webster on octane

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