Noun fluid ounce has 2 senses
  1. fluidounce, fluid ounce - a British imperial unit of capacity or volume (liquid or dry) equal to 8 fluid drams or 28.416 cubic centimeters (1.734 cubic inches)
    --1 is a kind of British capacity unit, Imperial capacity unit
    --1 is a part of gill
    --1 has parts: fluidram, fluid dram, fluid drachm, drachm
  2. fluidounce, fluid ounce - a United States unit of capacity or volume equal to 1.804 cubic inches
    --2 is a kind of United States liquid unit
    --2 is a part of gill
    --2 has parts: fluidram, fluid dram, fluid drachm, drachm
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