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Noun: gill  gil
  1. A British imperial capacity unit (liquid or dry) equal to 5 fluid ounces or 142.066 cubic centimetres
     
  2. A United States liquid unit equal to 4 fluid ounces
     
  3. Any of the radiating leaflike spore-producing structures on the underside of the cap of a mushroom or similar fungus
    - lamella
     
  4. Respiratory organ of aquatic animals that breathe oxygen dissolved in water
    - branchia

Derived forms: gills

Type of: British capacity unit, Imperial capacity unit, plant organ, respiratory organ, United States liquid unit

Part of: cup, pint

Encyclopedia: Gill, Richard