fluid dram fluidd·ram uncommon noun 1. a British imperial capacity measure (liquid or dry) equal to 60 minims or 3.5516 cubic centimeters Synonymsfluidramfluid dramfluid drachmdrachm 2. a unit of capacity or volume in the apothecary system equal to one eighth of a fluid ounce Synonymsfluidramfluid dramfluid drachmdrachm Related words Broader terms United States liquid unitBritish capacity unit Parts fluidounce Part of minim WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.