fluid drachm

(noun) a British imperial capacity measure (liquid or dry) equal to 60 minims or 3.5516 cubic centimeters. Synonyms: fluidram, fluid dram, fluid drachm, drachm.

(noun) a unit of capacity or volume in the apothecary system equal to one eighth of a fluid ounce. Synonyms: fluidram, fluid dram, fluid drachm, drachm.