Longman Dictionary of Contemporary English homepage

Topic: WEAPONS

Date: 1400-1500
Language: Latin
Origin: canistrum 'basket', from Greek kanastron, from kanna; CANE1

canister

noun
     
can‧is‧ter [countable]
1PMW a round metal case that contains gas and bursts when it is thrown or fired from a gun:
Police fired tear gas canisters into the crowd.
2 a metal container for keeping something in:
a tea canister
a petrol canister
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