can·is·ter /ˈkænəstɚ/
 罐,筒,霰彈
 Can·is·ter n.
 1. A small basket of rushes, reeds, or willow twigs, etc.
 2. A small box or case for holding tea, coffee, etc.
 3. Mil. A kind of case shot for cannon, in which a number of lead or iron balls in layers are inclosed in a case fitting the gun; -- called also canister shot.
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 canister
      n 1: a metallic cylinder packed with shot and used as ammunition
           in a firearm [syn: case shot, canister shot]
      2: metal container for storing dry foods such as tea or flour
         [syn: cannister, tin]