#liquid_unit__liquid_measure  a unit of capacity for liquids (for measuring the volumes of liquids or their containers)
  supertype:  #volume_unit__capacity_unit__capacity_measure__cubage_unit__cubic_measure__cubicmeasure__cubic_content_unit__cubiccontentunit__displacement_unit__cubature_unit  a unit of measurement of volume or capacity
  subtype:  #United_States_liquid_unit  a unit of measurement of capacity for liquids officially adopted in the United States Customary System
     subtype:  #minim  a United States liquid unit equal to 1/60 fluidram
     subtype:  #fluidram__fluid_dram__fluiddram__fluiddrachm  a unit of capacity or volume in the apothecary system equal to one eighth of a fluid ounce
     subtype:  #fluidounce__fluid_ounce  a United States unit of capacity or volume equal to 1.804 cubic inches
     subtype:  #gill  a United States liquid unit equal to 4 fluid ounces
     subtype:  #cup.United_States_liquid_unit  a United States liquid unit equal to 8 fluid ounces
     subtype:  #pint  a United States liquid unit equal to 16 fluid ounces; two pints equal one quart
     subtype:  #fifth  a quantity of liquor equal to one fifth of a United States gallon
     subtype:  #quart  a United States liquid unit equal to 32 fluid ounces; four quarts equal one gallon
     subtype:  #gallon__gal  United States liquid unit equal to 4 quarts or 3.785 liters
     subtype:  #bbl__barrel  any of various units of capacity; "a barrel of beer is 31 gallons and a barrel of oil is 42 gallons"
  subtype:  #British_capacity_unit__Imperial_capacity_unit  a unit of measure for capacity officially adopted in the British Imperial System; British units are both dry and wet
     subtype:  #bbl__barrel  any of various units of capacity; "a barrel of beer is 31 gallons and a barrel of oil is 42 gallons"
     subtype:  #minim.British_capacity_unit  a British imperial capacity measure (liquid or dry) equal to 1/60th fluid dram or 0.059194 cubic centimeters
     subtype:  #fluid_dram__fluiddram__fluid_drachm__fluiddrachm  a British imperial capacity measure (liquid or dry) equal to 60 minims or 3.5516 cubic centimeters
     subtype:  #fluid_ounce__fluidounce  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)
     subtype:  #gill.British_capacity_unit  a British imperial capacity unit (liquid or dry) equal to 5 fluid ounces or 142.066 cubic centimeters
     subtype:  #pint.British_capacity_unit  a British imperial capacity measure (liquid or dry) equal to 4 gills or 568.26 cubic centimeters
     subtype:  #quart.British_capacity_unit  a British imperial capacity measure (liquid or dry) equal to 2 pints or 1.136 liters
     subtype:  #Imperial_gallon__gallon__congius__congiu  a British imperial capacity measure (liquid or dry) equal to 4 quarts or 4.545 liters
     subtype:  #peck.British_capacity_unit  a British imperial capacity measure (liquid or dry) equal to 2 gallons
     subtype:  #bushel.British_capacity_unit  a British imperial capacity measure (liquid or dry) equal to 4 pecks
     subtype:  #firkin.British_capacity_unit  a British unit of capacity equal to 9 imperial gallons
     subtype:  #kilderkin  an obsolete British unit of capacity equal to 18 Imperial gallons
     subtype:  #quarter.British_capacity_unit  (British) a quarter of a hundredweight (28 pounds)
     subtype:  #hogshead.British_capacity_unit  a British unit of capacity for alcoholic beverages
     subtype:  #chaldron  a British imperial capacity measure (liquid or dry) equal to 36 bushels
  subtype:  #arroba  a liquid measure (with different values) used in some Spanish speaking countries
  subtype:  #bath.liquid_unit  an ancient Hebrew liquid measure equal to about 10 gallons
  subtype:  #mutchkin  a Scottish unit of liquid measure equal to 0.9 United States pint
  subtype:  #oka  a Turkish liquid unit equal to 1.3 pints

No statement uses or specializes #liquid_unit; click here to add one.