Any container that is roughly cylindrical in shapeA container for 35mm movie film or 35mm photo film for use in camerasPods used for parachute supply dropsGas containers used for riot controlA perforated metal box which is part of a gas maskThe carbon dioxide scrubber of a rebreatherThe filter which absorbs gasoline vapour in a car tankA cylindrical bell worn by sheep, that was traditionally used in Sussex, England, especially on the South DownsCanister shot, a type of artillery round used in warfare as anti-personnel ammunition reference
