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high-octane

adjective high-oc·tane \ ˈhī-ˈäk-ˌtān \
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Definition of high-octane

1 : having a high octane number and hence good antiknock properties
  • high-octane gasoline
2 : very powerful, strong, or effective
  • high-octane football
  • high-octane coffee

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First Known Use of high-octane

1931

in the meaning defined at sense 1

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HIGH-OCTANE Defined for English Language Learners

high-octane

adjective

Definition of high-octane for English Language Learners

  • of engine fuel : of a good quality that allows an engine to run efficiently

  • : very powerful, strong, or effective

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