- a half of a gallon, equal to 2 quarts (1.9 liters).
- holding or consisting of two quarts.
Examples from the Web for half-gallon
Historical Examples of half-gallon
Jim took his half-gallon canteen, ranged up, and dismounted.Curly
The missionary put his hand into this sawdust, and drew out a half-gallon can.White Fire
Roy J. Snell
Roy poured a half-gallon or so of kerosene into each of the two cylinders and left it over night.Tom Slade at Temple Camp
Percy K. Fitzhugh
We procured enough to make our half-gallon bucket full and very strong.Andersonville, Volume 4
He is now to be seen more frequently in the skittle-ground, clasping a half-gallon, instead of a quart of beer.Rattlin the Reefer