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English definition of “cylinder”

cylinder

noun [C]     /ˈsɪlɪndər/
SHAPE a shape with circular ends and long, straight sides, or a container or object shaped like this: an oxygen cylinderGeometrical shapesSpherical, circular and annular objectsSpherical, circular and annular objectsGeometrical shapes
CAR PART a part in a car or machine's engine that is shaped like a tube, and where another part moves up and downThe engine and engine partsEngines and motors
(Definition of cylinder noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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