Definitions

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Mining) Undercutting in a bed of coal, in order to bring down the upper mass.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun mining undercutting in a bed of coal in order to bring down the upper mass
  • verb Present participle of hole.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

See hole a hollow, and -ing.

Examples

Comments

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