Canister

The term canister (sometimes mis-spelled cannister) comes from Latin (canistrum = basket) or Greek (καναστρον = wicker basket, or earthenware container). It means: Originally, from Greek καννα (= reed, cane, anything made of reeds), a basket of woven reeds
Now commonly, any container that is roughly cylindrical in shape.
The abbreviated form "can" refers more specifically to a metal canister.
A container for 35mm film for use in cameras
Pods used for parachute supply drops
Gas containers used for riot control and on the contrary :
A perforated metal box which is part of a gas mask
The carbon dioxide scrubber of a rebreather
The filter which absorbs gasoline vapour in a car tank
A cylindrical bell worn by sheep, that was traditionally used in Sussex, England, especially on the South Downs.
Canister shot or case-shot, which were types of artillery rounds used in warfare as anti-personnel ammunition

Translation

The word "Canister" occurs as such in the following languages: English, French.