fluid ounce flui·dounce uncommon noun 1. 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) Synonymsfluidouncefluid ounce 2. a United States unit of capacity or volume equal to 1.804 cubic inches Synonymsfluidouncefluid ounce Related words Broader terms United States liquid unitBritish capacity unit Parts gill Part of fluidram WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
