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n. pl. con·gi·i (-jē-ī′)
1. Abbr. c. or cong. Pharmacology A gallon.
2. An ancient Roman measure for liquids, equal to about seven eighths of a US gallon (3.3 liters).
[Middle English, a liquid measure, from Latin, from Greek konkhion, diminutive of konkhē, konkhos, shellful.]
n, pl -gii (-dʒɪˌaɪ)
1. (Units) pharmacol a unit of liquid measure equal to 1 Imperial gallon
2. (Units) an ancient Roman unit of liquid measure equal to about 0.7 Imperial gallon or 0.84 US gallon
[C14: from Latin, probably from Greek konkhos liquid measure, conch]
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|Noun||1.||congius - a British imperial capacity measure (liquid or dry) equal to 4 quarts or 4.545 liters|
British capacity unit, Imperial capacity unit - a unit of measure for capacity officially adopted in the British Imperial System; British units are both dry and wet
bbl, barrel - any of various units of capacity; "a barrel of beer is 31 gallons and a barrel of oil is 42 gallons"
quart - a British imperial capacity measure (liquid or dry) equal to 2 pints or 1.136 liters
bushel - a British imperial capacity measure (liquid or dry) equal to 4 pecks
firkin - a British unit of capacity equal to 9 imperial gallons