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• n  a unit of apothecary weight equal to an eighth of an ounce or to 60 grains
• n  a British imperial capacity measure (liquid or dry) equal to 60 minims or 3.5516 cubic centimeters
• n  a unit of capacity or volume in the apothecary system equal to one eighth of a fluid ounce

• The government also lengthens the yard and lightens the pound to conform to international standards, and in five years it will also abolish pennyweight, scruple and drachm.
• The ancient symbols for ounce and drachm are nearly alike, and fatal over doses have resulted.

• dram
• drachma
• fluidram
• fluid dram
• fluid drachm