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Definition of Canister
1. Noun. A metallic cylinder packed with shot and used as ammunition in a firearm.
Generic synonyms: Ammo, Ammunition
Terms within: Pellet, Shot
2. Noun. Metal container for storing dry foods such as tea or flour.
Definition of Canister
1. n. A small basket of rushes, reeds, or willow twigs, etc.
Definition of Canister
1. Noun. A cylindrical or rectangular container usually of lightweight metal, plastic, or laminated pasteboard used for holding a dry product (as tea, crackers, flour, matches). ¹
2. Noun. Any of various cylindrical metal receptacles usually with a removable close-fitting top. ¹
3. Noun. 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. ¹
4. Noun. 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. ¹
5. Noun. A projectile component containing colored or screening smoke or riot control agent composition. ¹
¹ Source: wiktionary.com
Definition of Canister
1. a small, metal box [n -S]
Medical Definition of Canister
1. A box or container; in anaesthesiology, the container for carbon dioxide absorbent. (05 Mar 2000)