Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. That part of a mine from which the mineral has been partially or wholly removed; the waste left in old workings.

from the GNU version of the Collaborative International Dictionary of English

  • n. That part of a mine from which the mineral has been partially or wholly removed; the waste left in old workings; -- called also gob .

from The Century Dictionary and Cyclopedia

  • n. A stack or cock, as of grain.
  • n. A rick of corn in the straw laid up in a barn.
  • n. 3. In coal-mining, a space from which coal has been worked away, and which is more or less filled up with refuse.

Etymologies

Compare gob. (Wiktionary)

Examples

  • But experts said that the preferred theory was that a collapse of the mine's roof in the "goaf" - the void left behind after coal is removed - released methane into the mine.

    BBC News - Home

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