Noun gill has 4 senses
  1. gill - a British imperial capacity unit (liquid or dry) equal to 5 fluid ounces or 142.066 cubic centimeters
    --1 is a kind of
    British capacity unit, Imperial capacity unit
    --1 is a part of pint
    --1 has parts: fluidounce, fluid ounce
  2. gill - a United States liquid unit equal to 4 fluid ounces
    --2 is a kind of
    United States liquid unit
    --2 is a part of cup
    --2 has parts: fluidounce, fluid ounce
  3. gill, lamella - any of the radiating leaflike spore-producing structures on the underside of the cap of a mushroom or similar fungus
    --3 is a kind of plant organ
  4. gill, branchia - respiratory organ of aquatic animals that breathe oxygen dissolved in water
    --4 is a kind of respiratory organ
    --4 has particulars: ctenidium; ceras; external gill
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