| Noun | 1.fluid drachm - a British imperial capacity measure (liquid or dry) equal to 60 minims or 3.5516 cubic centimetersfluid dram, fluidram, drachmBritish capacity unit, Imperial capacity unit - a unit of measure for capacity officially adopted in the British Imperial System; British units are both dry and wetminim - a British imperial capacity measure (liquid or dry) equal to 1/60th fluid dram or 0.059194 cubic centimetersfluid ounce, fluidounce - a British imperial unit of capacity or volume (liquid or dry) equal to 8 fluid drams or 28.416 cubic centimeters (1.734 cubic inches) | | 2.fluid drachm - a unit of capacity or volume in the apothecary system equal to one eighth of a fluid ouncefluid dram, fluidram, drachmUnited States liquid unit - a liquid unit officially adopted in the United States Customary Systemminim - a United States liquid unit equal to 1/60 fluidramfluid ounce, fluidounce - a United States unit of capacity or volume equal to 1.804 cubic inches |