overproof definition

  • adjective:
    • Containing a higher proportion of alcohol than proof spirit, especially containing a lot more than 50 per cent liquor by amount.
    • having a greater proportion of alcohol than proof-spirit. Often abbreviated to OP.
    • Containing more alcohol than proof-spirit; more powerful than proof-spirit; this is certainly, containing above 49.3 per cent by fat of alcoholic beverages.
  • others:
    • Having a less specific-gravity than 0.91984: said of alcohol liquors.

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