magnum

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A bottle, holding about two fifths of a gallon (1.5 liters), for wine or liquor.
2. n. The amount of liquid that this bottle can hold.
3. n. A magnum cartridge or firearm.
4. adj. Of or relating to a cartridge containing a larger explosive charge than other cartridges of the same size.
5. adj. Designed to shoot magnum cartridges.

Century Dictionary and Cyclopedia

1. n. A large wine-bottle, usually twice the size of the ordinary bottle used for the same kind of wine.
2. n. The quantity of wine contained in such a bottle: as, a magnum of port.
3. n. Pl. magna (-nä). In anatomy, the largest bone of the human carpus, in the distal row, between the trapezoid and the unciform, in special relation with the head of the middle metacarpal bone: more fully called os magnum. It is the third carpale of a typical carpus, and is also known as capitatum, or os capitatum, from its shape in man.

Wiktionary

1. n. wine A bottle of wine containing 1.5 liters of fluid, double the volume of a standard bottle.
2. n. A gun calibre larger than, or derived from, a smaller similar cartridge.

GNU Webster's 1913

1. n. A large wine bottle.
2. n. (Anat.) A bone of the carpus at the base of the third metacarpal bone.
3. n. A magnum pistol, or the cartridge such a pistol uses.
4. adj. (Firearms) Having a larger charge than usual for a cartridge of the same caliber; -- of cartridges for handgun.
5. adj. (Firearms) Designed to use a cartridge with a larger charge than usual for handguns of the same caliber; -- of handguns.

WordNet 3.0

1. n. a large wine bottle for liquor or wine