Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “cylinder”

cylinder

noun [C] uk   /ˈsɪl.ɪn.dər/ us    /-dɚ/

cylinder noun [C] (SHAPE)

a solid or hollow tube with long straight sides and two circular ends the same size, or an object shaped like this, often used as a container: Deep-sea divers carry cylinders of oxygen on their backs.Geometrical shapesSpherical, circular and annular objectsSpherical, circular and annular objectsGeometrical shapes

cylinder noun [C] (ENGINE PART)

the tube-shaped device, found especially in an engine, inside which the part of the engine that causes the fuel to produce power moves up and down: a six-cylinder engineThe engine and engine partsEngines and motors
(Definition of cylinder from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of cylinder?
Add Cambridge dictionaries to your browser to your website

Definitions of “cylinder” in other dictionaries

Word of the Day

bitter

a type of dark brown beer with a bitter taste

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More