Definition of canister in English:

canister

Line breaks: can¦is|ter
Pronunciation: /ˈkanɪstə
 
/

noun

  • 1A round or cylindrical container used for storing such things as food, chemicals, or rolls of film.
    More example sentences
    • Pill bottles or film canisters make excellent storage containers for seeds.
    • Seam rippers and thread nippers slip nicely into empty prescription pill containers or film canisters.
    • Firefighters were forced to retreat when they realised that the building contained acetylene canisters, gas bottles and diesel barrels.
  • 1.1A cylinder of pressurized gas, typically one that explodes when thrown or fired from a gun: riot police fired tear-gas canisters into the crowd
    More example sentences
    • Thus ambushed, the pickets were made to run a gauntlet of police firing teargas canisters and rubber bullets at close range.
    • Police fired tear gas canisters at the crowd, including the council workers' wives, many with babies strapped to their backs.
    • Riot police and soldiers fired canisters of tear gas at the protesters as they entered the parliament compound.
  • 1.2 [mass noun] historical Small bullets packed in cases that fit the bore of a gun: another deadly volley of canister
    More example sentences
    • The most common canon was called the Napoleon and used both grape shot and canister ammunition.
    • The introduction of the rifled musket in the 1850s with ranges greater than canister altered the role of field artillery.
    • I could run out of mine tomorrow; just like I suppose Buck ran out of his that previous night, one foot doing what years of canister and grape shot had not.

Origin

late 15th century (denoting a basket): from Latin canistrum, from Greek kanastron 'wicker basket', from kanna 'cane, reed' (see cane).

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