- 1. 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 . Source: opted
- 2. That part of a mine from which the mineral has been partially or wholly removed; the waste left in old workings; -- called also gob . To work the goaf or gob, to remove the pillars of mineral matter previously left to support the roof, and replace them with props. Ure. Source: webster
- 3. That part of a mine from which the mineral has been partiallyor wholly removed; the waste left in old workings; -- called also gob. To work the goaf or gob, to remove the pillars of mineral matterpreviously left to support the roof, and replace them with props.Ure. Source: adambom
- 4. 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 . Source: ecdict
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gobleftmineralcalledmineoldpartremovedwastewhollyworkingspartiallypillarspropsremovereplaceroofsupportthemureworkmatterpreviously