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|Noun||1.||activating agent - (mineral extraction) a surface-active chemical used in flotation process to increase the attraction to a specific mineral|
beneficiation, mineral dressing, mineral extraction, mineral processing, ore dressing, ore processing - crushing and separating ore into valuable substances or waste by any of a variety of techniques
activator - (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription