can·is·ter 
/ˈkænəstɚ/ noun
plural can·is·ters /ˈkænəstɚ/ noun [count] 1 : a container with a lid that is used for keeping dry products
▪ a flour/sugar/tea canister 2 : a plastic or metal container that is used for keeping a roll of film
▪ a film canister 3 : a metal case that contains gas or chemical substances and that bursts when it is fired from a gun
▪ tear gas canisters
▪ a flour/sugar/tea canister
▪ a film canister
▪ tear gas canisters
