octane number


octane number

noun

Definition of OCTANE NUMBER

:  a number that is used to measure the antiknock properties of a liquid motor fuel (as gasoline) with a higher number indicating a smaller likelihood of knocking —called also octane rating — compare cetane number

First Known Use of OCTANE NUMBER

1931

Browse

Next Word in the Dictionary: octangular
Previous Word in the Dictionary: octane
All Words Near: octane number

Seen & Heard

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

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More