- a small box or can for coffee, tea, tobacco, etc.
- a boxlike vacuum cleaner
- Historical lead or iron shot in a container that scattered its contents when firedin full canister shot
- the part of a gas mask that contains the substances for filtering the air to be breathed
Origin of canisterMiddle English from Classical Latin canistrum, wicker basket from Classical Greek kanastron from kanna, a reed: see cane
- A usually cylindrical storage container, especially:a. A box or can of thin metal or plastic used for holding dry foodstuffs or cooking ingredients, such as flour or sugar.b. A small plastic container used for storing a roll of film.c. 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.
- a. A metallic cylinder packed with shot that scatter upon discharge from a cannon, formerly used as an antipersonnel round.b. Such cylinders, or the shot used in such cylinders, considered as a group.
- The part of a gas mask that contains the filter for removing toxic agents from the air.
Origin of canisterLatin canistrum basket from Greek kanastron from kanna reed ; see cane .
- A cylindrical or rectangular container usually of lightweight metal, plastic, or laminated pasteboard used for holding a dry product (as tea, crackers, flour, matches).
- Any of various cylindrical metal receptacles usually with a removable close-fitting top.
- 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.
- 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.
- A projectile component containing colored or screening smoke or riot control agent composition.
From Latin canistrum.