Canister definition

kănĭ-stər
Frequency:
A usually cylindrical storage container, especially:
  • A box or can of thin metal or plastic used for holding dry foodstuffs or cooking ingredients, such as flour or sugar.
  • A small plastic container used for storing a roll of film.
  • A metal container that holds pressurized gas, as one containing tear gas that explodes on impact or one containing oxygen as part of a breathing apparatus.
noun
2
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A small box or can for coffee, tea, tobacco, etc.
noun
2
1
A boxlike vacuum cleaner.
noun
2
1
(historical) Lead or iron shot in a container that scattered its contents when fired.
noun
1
1
A metallic cylinder packed with shot that scatter upon discharge from a cannon, formerly used as an antipersonnel round.
noun
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Such cylinders, or the shot used in such cylinders, considered as a group.
noun
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The part of a gas mask that contains the substances for filtering the air to be breathed.
noun
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A cylindrical or rectangular container usually of lightweight metal, plastic, or laminated pasteboard used for holding a dry product (as tea, crackers, flour, matches).
noun
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Any of various cylindrical metal receptacles usually with a removable close-fitting top.
noun
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A special short range antipersonnel projectile consisting of a casing of light metal, loaded with preformed submissiles such as flechettes or steel balls. The casing is designed to open just beyond the muzzle of the weapon, dispersing the submissiles.
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A component of canister type protective mask containing a mechanical filter and chemical filling to filter, neutralize and/or absorb toxic chemical, biological and radiological agents.
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A projectile component containing colored or screening smoke or riot control agent composition.
noun
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The part of a gas mask that contains the filter for removing toxic agents from the air.
noun
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1

Other Word Forms

Noun

Singular:
canister
Plural:
canisters

Origin of canister

  • Latin canistrum basket from Greek kanastron from kanna reed cane

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin canistrum.

    From Wiktionary