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Plural
canisters
2
a metallic cylinder packed with shot and used as ammunition in a firearm
Synonyms:
3
a cylindrical metal container that is used for storing a roll of film
A canister is a small, typically cylindrical container used to store and protect film rolls, reels, or cartridges safely. These canisters help preserve the film from damage, light exposure, or contamination, ensuring the quality of the recorded images or footage remains intact until it is used or processed.