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Meaning of carburetion

car•bu•re•tion

Pronunciation: (kär"bu-rā'shun, -byu-, -byu-resh'un), [key]
— n.
  1. (in an internal-combustion engine) the process of producing a mixture of air and fuel in the correct proportion for engine combustion.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.