core barrel

(in a core drill) a length of pipe for holding rock cores while they are being extracted from the drill hole.

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Universalium. 2010.

Look at other dictionaries:

  • core barrel — noun 1. : a tube inside a drill pipe and supported by a bit to receive the core in core boring 2. : a tube usually of iron on which a foundry loam core is formed * * * (in a core drill) a length of pipe for holding rock cores while they are being …   Useful english dictionary

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