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magnum

[mag-nuh m] /ˈmæg nəm/
noun
1.
a large wine bottle having a capacity of two ordinary bottles or 1.5 liters (1.6 quarts).
2.
a magnum cartridge or firearm.
adjective
3.
(of a cartridge) equipped with a larger charge than other cartridges of the same size.
4.
(of a firearm) using such a cartridge.
5.
Informal. unusually great in power or size:
a magnum spotlight; a magnum dosage.
Origin
1780-1790
1780-90; < Latin, neuter of magnus large; in reference to firearms, orig. used as a trademark by the Smith and Wesson Co.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for magnums

magnum

/ˈmæɡnəm/
noun (pl) -nums
1.
a wine bottle holding the equivalent of two normal bottles (approximately 52 fluid ounces)
Word Origin
C18: from Latin: a big thing, from magnus large
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for magnums

magnum

n.

1788, "bottle containing two quarts of wine or spirits," from Latin magnum, neuter of magnus "great in size" (see magnate). Registered 1935 by Smith & Wesson Inc., of Springfield, Massachusetts, as the name of a powerful type of handgun.

Online Etymology Dictionary, © 2010 Douglas Harper
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12
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