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Webster's New World College Dictionary » drilling mud
drilling mud
drilling mud definition
☆ drilling mud
a suspension of fine-grained mineral matter, usually in water, circulated in oil-well drilling to cool and lubricate the drill bit, plug up porous surfaces, etc.
Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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