1. (noun) a unit of apothecary weight equal to an eighth of an ounce or to 60 grains

• drachma
• dram

2. (noun) a British imperial capacity measure (liquid or dry) equal to 60 minims or 3.5516 cubic centimeters

• fluid drachm
• fluid dram
• fluidram

3. (noun) a unit of capacity or volume in the apothecary system equal to one eighth of a fluid ounce

• fluid drachm
• fluid dram
• fluidram

1. (noun) a unit of apothecary weight equal to an eighth of an ounce or to 60 grains

• apothecaries' unit
• apothecaries' weight

2. (noun) a British imperial capacity measure (liquid or dry) equal to 60 minims or 3.5516 cubic centimeters

• british capacity unit
• imperial capacity unit

3. (noun) a unit of capacity or volume in the apothecary system equal to one eighth of a fluid ounce

• united states liquid unit