#troy_pound__apothecaries'_pound__apothecaries'pound  an apothecary weight equal to 12 ounces or 373.242 grams
  supertype:  apothecaries'_unit  troy_unit
  part:  apothecaries'_ounce__apothecaries'ounce__ounce__troyounce  a unit of apothecary weight equal to 480 grains or one twelfth of a pound
     part:  pennyweight  a unit of apothecary weight equal to 24 grains
        part:  grain.troy_unit  1/60 dram; equals an avoirdupois grain or 64.799 milligrams
     part:  dram.apothecaries'_unit__drachm__drachma  a unit of apothecary weight equal to an eighth of an ounce or to 60 grains
        part:  scruple.apothecaries'_unit  a unit of apothecary weight equal to 20 grains
           part:  grain.troy_unit  1/60 dram; equals an avoirdupois grain or 64.799 milligrams

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