#dram.apothecaries'_unit__drachm__drachma  a unit of apothecary weight equal to an eighth of an ounce or to 60 grains
  supertype:  #apothecaries'_unit__apothecaries'unit__apothecaries'weight  any weight unit used in pharmacy; an ounce is equal to 480 grains and a pound is equal to 12 ounces
  part of:  #apothecaries'_ounce
  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

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