Definition of

Drachm

  1. (noun, quantity) a unit of capacity or volume in the apothecary system equal to one eighth of a fluid ounce
  2. (noun, quantity) a British imperial capacity measure (liquid or dry) equal to 60 minims or 3.5516 cubic centimeters
  3. (noun, quantity) a unit of apothecary weight equal to an eighth of an ounce or to 60 grains

via WordNet, Princeton University

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