Congius

n.	1.	(Roman Antiq.) A liquid measure containing about three quarts.
	2.	(Med.) A gallon, or four quarts.

Noun

1.

congius - a British imperial capacity measure (liquid or dry) equal to 4 quarts or 4.545 liters Synonyms: Imperial gallon, gallon

barrel, bbl, British capacity unit, bushel, firkin, gallon, Imperial capacity unit, Imperial gallon, quart