Definition of afterdamp in US English:



  • Choking gas, rich in carbon monoxide, left after an explosion of firedamp in a mine.

    • ‘The afterdamp and smoke passed directly to the airshaft from the split of the ventilating current in the section.’
    • ‘These men had survived the force of the explosion, but had succumbed to the effects of the afterdamp.’
    • ‘As they had been almost completely destroyed it was impossible to enter owing to the afterdamp which prevailed.’
    • ‘They had managed to soak their shirts in water and breath through them to filter out the afterdamp.’
    • ‘The ‘afterdamp’ occurring in such situations is a mixture of carbon dioxide and carbon monoxide.’