noun
waste or impurity; something of low quality or value
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The dross from the metal smelting process is carefully removed to ensure a high-quality end product.
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I can't believe you're keeping all this dross in your garage, it's such a mess!
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I'm tired of dealing with all this dross, let's just throw it out and start fresh.
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She sifted through the dross of bad relationships before finding her true love.