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drill (2)
drill (3)
drill (4)
drill down
drill instructor
drill pipe
drill press
drill sergeant
drill string
drilldown
drilling platform
drilling rig
drillmaster
drillstock
drily
drink
drink-driving
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drill string
drill string (plural drill strings)


noun 
Definition:
 
boring pipe: a long metal pipe, progressively built up from lengths of steel tubing, that is attached above the drill when drilling for oil or gas and eventually forms the bore of the well
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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