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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
HIGH–OCTANE Defined for English Language Learners
high-octane
play
adjective
Definition of high–octane for English Language Learners
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of engine fuel : of a good quality that allows an engine to run efficiently
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: very powerful, strong, or effective
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