Clue: Smeltery residue

Answer: SLAG

Length: 4

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Similar Clues:

• Rainstorm residue (MUCK with 4 letters)
• Refinery residue (e.g. DROSS with 5 letters)
• Barbecues' residues (ASHES with 5 letters)
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• Sugar-cane residue (e.g. BAGASSE with 7 letters)
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