From Longman Dictionary of Contemporary Englishmagnummag‧num /ˈmæɡnəm/ noun [countable] 1 DFDa large bottle containing about 1.5 litres of wine, champagne etc2 PMWa powerful type of gun that you can use with one hand a .44 magnum
Examples from the Corpus
magnum• He receives £750 and a magnum of champagne.• If some one gets hit by a magnum bullet, he is dead.• You are the most extraordinary and wonderful woman I have ever encountered, and I shall make it a magnum of champagne.• Delaney went in, and pulled up as if he had been hit with a magnum at close range.• As she began to tick them off, a manservant rushed up with a magnum of champagne.• These small cerebellar projections - we call them the tonsils - have been compressed against the bony rim of the foramen magnum.• The wine was Beaune Clos de Mouche 1982, in magnum.• That magnum has a kick like a field-gun.Origin magnum 1. (1700-1800) Latin magnus “great”2. (1900-2000) Magnum, a trademark 