1. The ratio of the number of miles travelled to the number of gallons of petrol burned
   - mileage, fuel consumption rate, gas mileage [N. Amer]

Type of: ratio

• rightness
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• rigid
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• rigidifying
• rigidity
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• rigidness
• Rigil
• Rigil Kent
• rigmarole
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• rigor mortis
• rigorism
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• rigorous
• rigorously
• rigorousness
• rigour
• rigourousness