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ENGLISH · A WORD WITH POSSIBILITIES

canister.

A cylindrical or rectangular container usually of lightweight metal, plastic, or laminated pasteboard used for holding a dry product (as tea, crackers, flour, matches).

8 characters3 syllables approx.English language

Meaning & usage

noun/ˈkænɪstɚ/US
  1. A cylindrical or rectangular container usually of lightweight metal, plastic, or laminated pasteboard used for holding a dry product (as tea, crackers, flour, matches).

  2. Any of various cylindrical metal receptacles usually with a removable close-fitting top.

  3. 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.

  4. A projectile component containing colored or screening smoke or riot control agent composition.

  5. A component of canister-type protective masks containing a mechanical filter and chemical filling to filter, neutralize and/or absorb toxic chemical, biological and radiological agents.

  6. Part of a windmill that connects the sails to the windshaft.

  7. A person's head.

    archaic · slang
Where this word comes from

From Middle English canustyr (“basket”), a borrowing from Latin canistrum. Doublet of canaster and knaster. * (metal receptacle): Through influence of unrelated can. * (projectile): Short for canister shot, so called for its casing.

verb/ˈkænɪstɚ/US
  1. To pack into a canister.

    transitive
Where this word comes from

From Middle English canustyr (“basket”), a borrowing from Latin canistrum. Doublet of canaster and knaster. * (metal receptacle): Through influence of unrelated can. * (projectile): Short for canister shot, so called for its casing.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.