Definition of "hardeners" [hardeners]

• Plural form of hardener. (noun)

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• "Not needing base and top coats, cuticle creams or nail hardeners, he estimated the total cost of conventional polish as close to $40 or $50."
• "A US Environmental Protection Agency guide, produced to warn nail salon workers, indicates twenty chemicals found in nail glue, polish, hardeners, additives, powders or removers."
• "The paint in the "good" Wackers contained resin-based hardeners, which van Gogh never used."