congius definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
congius definition by American Heritage Dictionary
noun pl. con·gi·i
- Abbr. c. or cong. Pharmacology A gallon.
- An ancient Roman measure for liquids, equal to about seven eighths of a U.S. gallon (3.3 liters).
Origin: Middle English, a liquid measure, from Latin, from Greek konkhion, diminutive of konkhē, konkhos, shellful.