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BNC: 45982 COCA: 25557

octane

octane /ˈɑːkˌteɪn/ noun
octane
/ˈɑːkˌteɪn/
noun
Learner's definition of OCTANE
[noncount]
: a chemical in petroleum that is used to rate the quality of different kinds of gasoline辛烷
see also high-octane

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