• Gunpowder

    Full definition of gunpowder

    Noun

    gunpowder

    (countable and uncountable; plural gunpowders)
    1. An explosive mixture of saltpetre (potassium nitrate), charcoal and sulphur; formerly used in gunnery but now mostly used in fireworks.

    Usage notes

    Gunpowders refers to multiple formulations for the uncountable gunpowder.

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