from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A unit of volume in the U.S. Customary System, used in liquid measure, equal to 4 quarts (3.785 liters).
- n. 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.
- n. A container with a capacity of one gallon.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A unit of volume, equivalent to eight pints
- n. exactly 4.54609 liters; an imperial gallon
- n. 231 cubic inches or approximately 3.785 liters for liquids (a "U.S. liquid gallon")
- n. one-eighth of a U.S. bushel or approximately 4.405 liters for dry goods (a "U.S. dry gallon").
- n. A large quantity (of any liquid).
from the GNU version of the Collaborative International Dictionary of English
- n. A measure of capacity, containing four quarts; -- used, for the most part, in liquid measure, but sometimes in dry measure.
from The Century Dictionary and Cyclopedia
- n. An English measure of capacity for dry or liquid substances, but usually for liquids, containing 4 quarts.
- n. A measure of land. A gallon of land is supposed to have been the amount of land proper to sow a gallon of grain in.
- n. The butter-bur or butterdock, Petasites Petasites.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a British imperial capacity measure (liquid or dry) equal to 4 quarts or 4.545 liters
- n. United States liquid unit equal to 4 quarts or 3.785 liters
Middle English, a liquid measure, from Old North French galon.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Anglo-Norman, Old Northern French galon, galun, ultimately from Medieval Latin galleta. Cf. also French jalon. (Wiktionary)