D defs.my
Entry 3 senses Webster, 1913

Haversack

/(hăv"ẽr*săk)/ · Hav·er·sack · IPA /ˈhævəsæk/
01 n. A bag for oats or oatmeal.
  1. 1.
    A bag for oats or oatmeal.[Prov. Eng.]
  2. 2.
    A bag or case, usually of stout cloth, in which a soldier carries his rations when on a march; -- distinguished from knapsack.
  3. 3.
    A gunner's case or bag used to carry cartridges from the ammunition chest to the piece in loading.