American English

Definition of canister noun from the Oxford Advanced American Dictionary



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  1. 1a container with a lid for holding flour, sugar, etc.
  2. 2a strong metal container holding gas or a chemical substance, especially one that bursts when it is fired from a gun or thrown tear-gas canisters
  3. 3a round metal container used for storing film a film canister
See the Oxford Advanced Learner's Dictionary entry: canister