Definition of Gallon

1. Noun. United States liquid unit equal to 4 quarts or 3.785 liters.

Exact synonyms: Gal
Generic synonyms: United States Liquid Unit
Terms within: Quart
Group relationships: Barrel, Bbl

2. Noun. A British imperial capacity measure (liquid or dry) equal to 4 quarts or 4.545 liters.
Exact synonyms: Congius, Imperial Gallon
Generic synonyms: British Capacity Unit, Imperial Capacity Unit
Group relationships: Barrel, Bbl, Bushel, Firkin
Terms within: Quart

Definition of Gallon

1. n. A measure of capacity, containing four quarts; -- used, for the most part, in liquid measure, but sometimes in dry measure.

Definition of Gallon

1. Noun. A unit of volume, equivalent to eight pints ¹

2. Noun. (UK Commonwealth) exactly 4.54609 liters; an imperial '''gallon''' ¹

3. Noun. (American English) 231 cubic inches or approximately 3.785 liters for liquids (a "U.S. liquid '''gallon'''") ¹

4. Noun. (American English) one-eighth of a U.S. bushel or approximately 4.405 liters for dry goods (a "U.S. dry '''gallon'''"). ¹

5. Noun. (context: in the plural informal) A large quantity (of any liquid). ¹

¹ Source:

Definition of Gallon

1. a unit of liquid measure [n -S]

Medical Definition of Gallon

1. A measure of capacity, containing four quarts; used, for the most part, in liquid measure, but sometimes in dry measure. The standart gallon of the Unites States contains 231 cubic inches, or 8.3389 pounds avoirdupois of distilled water at its maximum density, and with the barometer at 30 inches. This is almost exactly equivalent to a cylinder of seven inches in diameter and six inches in height, and is the same as the old English wine gallon. The beer gallon, now little used in the United States, contains 282 cubic inches. The English imperial gallon contains 10 pounds avoirdupois of distilled water at 62 of Fahrenheit, and barometer at 30 inches, equal to 277.274 cubic inches. Origin: OF galon, jalon, LL. Galo, galona, fr. Galum a liquid measure; cf. F. Jale large bowl. Cf. Gill a measure. Source: Websters Dictionary (01 Mar 1998)

Gallon Pictures

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Lexicographical Neighbors of Gallon

gallon (current term)
gallop rhythm
gallop sound

Literary usage of Gallon

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Encyclopedia Americana: A Library of Universal Knowledge (1920)
"The fundamental unit of liquid measures in the United States is the wine gallon of 231 cubic inches — a unit abandoned by England in 1824, but now generally ..."

2. United States Statutes at Large: Containing the Laws and Concurrent by United States (1860)
"... Burgundy, and claret wines, in bottles, thirty-five cents per gallon; on port and Burgundy wines in casks, fifteen cents per gallon; on Teneriffe wines, ..."

3. Merchants' Magazine and Commercial Review by William B. Dana (1842)
"60 Champagne, gallon 40 Port, Burgundy, and Claret, in bottles .gallon 35 Claret, in casks, ... In bottles, gallon 65 Nothing above contained, to inter, ..."

4. General Explanation of Tax Legislation Enacted in 1998: Report of the Joint edited by William Roth, Bill Archer (2000)
"(Of this amount, 0.1 cent per gallon is dedicated to the Leaking Underground Storage Tank ... The remaining 5.55 cents per gallon was a General Fund tax, ..."

5. United States Supreme Court Reports by Lawyers Co-operative Publishing Company, United States Supreme Court (1889)
"one half cents per gallon, is unreasonable and excessive: Therefore said Commission recommends and directs that you, the said Chicago, Milwaukee & St. Paul ..."

6. The Works of Alexander Hamilton: Containing His Correspondence, and His by Alexander Hamilton (1851)
"... of the fourth class, per gallon, ten cents; On those of the fifth class, per gallon, ten cents; On those of the sixth class, per gallon, fifteen cents. ..."

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