Definition of canister
- a film canister
she put the store-bought cookies in a fancy canister to make them look homemade
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'canister.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: a container with a lid that is used for keeping dry products
: a plastic or metal container that is used for keeping a roll of film
: a metal case that contains gas or chemical substances and that bursts when it is fired from a gun
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