Definition & Meaning of "canister"

Canister

NOUN

a small container, typically made of metal or plastic, that is used to store and preserve food items, such as tuna, beans or soup

a metallic cylinder packed with shot and used as ammunition in a firearm

a cylindrical metal container that is used for storing a roll of film

What is a "canister"?

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.