octane number
noun
: a number that is used to measure the antiknock properties of a liquid motor fuel (such as gasoline) with a higher number indicating a smaller likelihood of knocking
called also octane rating
compare cetane numberExamples of octane number in a Sentence
Recent Examples on the Web
The higher the octane number, the more stable the fuel.
—
Courtney Linder, Popular Mechanics, 22 Mar. 2022
Fueling requires unleaded pump octane number (PON) 86 or higher.
—Joe Michaud, San Diego Union-Tribune, 16 Aug. 2020
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Courtney Linder, Popular Mechanics, 22 Mar. 2022
Fueling requires unleaded pump octane number (PON) 86 or higher.
—Joe Michaud, San Diego Union-Tribune, 16 Aug. 2020
Dictionary Entries Near octane number
Cite this Entry
“Octane number.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/octane%20number. Accessed 22 Nov. 2024.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share