Definitions

from The Century Dictionary and Cyclopedia

  • n. In boring wells, etc., the rod used to support the drill or boring-tool and to connect it with the motor at the surface.

Etymologies

Sorry, no etymologies found.

Examples

  • This, but at another tunnel, was afterward modified by placing a separate hurdy-gurdy on a sleeve on each drill-rod; the advance movement of the drill being given by hydrostatic pressure on an annular piston, thus doing away with all gearing.

    Scientific American Supplement, No. 455, September 20, 1884

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