Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “cylinder”


noun [C] (SHAPE)   /ˈsɪl·ən·dər/
geometry a solid that has long straight sides and circular ends of equal size , or a hollow object shaped like this and often used as a container : Inside a roll of paper towels there’s a cardboard cylinder. cylindrical    /səˈlɪn·drɪ·kəl/ adjective geometry cylindrical structures
(Definition of cylinder noun (SHAPE) from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of cylinder

More American English definitions for “cylinder”

Definitions of “cylinder” in other dictionaries

Word of the Day


relating to behaviour between people that is pleasant and friendly, often despite a difficult situation

Word of the Day


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