Meaning of half-gallon

half-gal•lon

Pronunciation: (haf'gal'un, häf'-), [key]
— n.
  1. a half of a gallon, equal to 2 quarts (1.9 liters).
—adj.
  1. holding or consisting of two quarts.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.