Definition of "tonics" [tonics]

• Plural form of tonic. (noun)

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• "Unlike drugs, many herbs are taken as tonics, that is, like many vitamins, they can be used primarily to maintain good health."
• "REMEMBER all tonics are bitter, therefore beware of any so-called tonics that the animals eat readily as these possess no real tonic values."
• "The so-called tonics owed their chief virtue to their stimulating effect, which was due to the alcohol they contained and which in many instances practically equaled ordinary whisky in quality, quantity, and effect."