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fuel-efficient

[fyoo-uh l-i-fish-uh nt] /ˈfyu əl ɪˌfɪʃ ənt/
adjective
1.
producing power, heat, etc., at a rate considered optimal with regard to the amount of fuel consumed.
Related forms
fuel-efficiency, noun
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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