Gallon - Definitions from Dictionary.com

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Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

gal·lon

Audio Help [gal-uh

n] Pronunciation Key

–noun

a common unit of capacity in English-speaking countries, equal to four quarts, the U.S. standard gallon being equal to 231 cubic inches (3.7853 liters), and the British imperial gallon to 277.42 cubic inches (4.546 liters). Abbreviation: gal.

[Origin: 1250–1300; ME galo(u)n, gallon < ONF galon, deriv. from base of ML galléta jug, bucket, of uncert. orig.

]

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

Encyclopædia Britannica, Inc.
Gallon

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American Heritage Dictionary - Cite This Source - Share This

gal·lon Audio Help (gāl'ən) Pronunciation Key
n.

Abbr. gal.
1. A unit of volume in the U.S. Customary System, used in liquid measure, equal to 4 quarts (3.785 liters).
2. A unit of volume in the British Imperial System, used in liquid and dry measure, equal to 4 quarts (4.546 liters). See Table at measurement.
A container with a capacity of one gallon.

[Middle English, a liquid measure, from Old North French galon.]

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The American Heritage® Dictionary of the English Language, Fourth Edition
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Online Etymology Dictionary - Cite This Source - Share This
gallon

c.1300, from O.N.Fr. galon, corresponding to O.Fr. jalon "liquid measure," related to M.L. dim. form galleta "bucket, pail," also "a measure of wine," perhaps from Gaul. galla "vessel."

WordNet - Cite This Source - Share This

gallon
noun
1.	United States liquid unit equal to 4 quarts or 3.785 liters
2.	a British imperial capacity measure (liquid or dry) equal to 4 quarts or 4.545 liters

Kernerman English Multilingual Dictionary - Cite This Source - Share This
gallon [ˈgӕlən] noun

a measure for liquids, eight pints (in Britain, 4.546 litres; in the United States, 3.785 litres)

Arabic:	غالون
Chinese (Simplified):	加仑
Chinese (Traditional):	加崙
Czech:	galon
Danish:	gallon
Dutch:	gallon
Estonian:	gallon
Finnish:	gallona
French:	gallon
German:	die Gallone
Greek:	γαλόνι
Hungarian:	gallon
Icelandic:	gallon
Indonesian:	galon
Italian:	gallone

Japanese:	ガロン
Korean:	갤런
Latvian:	galons
Lithuanian:	galonas
Norwegian:	gallon
Polish:	galon
Portuguese (Brazil):	galão
Portuguese (Portugal):	galão
Romanian:	galon
Russian:	галлон
Slovak:	galón
Slovenian:	galona
Spanish:	galón
Swedish:	gallon
Turkish:	galon

See also: gallons (of)

The American Heritage Science Dictionary - Cite This Source - Share This

gallon Audio Help (gāl'ən) Pronunciation Key
A unit of liquid volume or capacity in the US Customary System equal to 4 quarts (3.79 liters). See Table at measurement.

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Gallon

Gal"lon\, n. [OF galon, jalon, LL. galo, galona, fr. galum a liquid measure; cf. F. jale large bowl. Cf. Gill a measure.] A measure of capacity, containing four quarts; -- used, for the most part, in liquid measure, but sometimes in dry measure.

Note: 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.

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