Definition of "energizer" [en•er•gi•zer]

• A person who, or a thing which energizes (noun)

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• "Also, studies show, you're more likely to feel good about yourself, and not only that, being considered an "energizer" makes you more likely to win a positive work evaluation."
• "Alpha lipoic acid - a brain 'energizer', according to Dr. Summers, the maker of Stemulite."
• "Much like Urth or Pastis, this café would become the morning, noon, and night energizer bunny of Melrose Place, a constant touch point of bustling and contagious life on the street."