Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “tube”

See all translations

tube

noun uk   /tjuːb/ us    /tuːb/

tube noun (PIPE)

B2 [C] a long cylinder made from plastic, metal, rubber, or glass, especially used for moving or containing liquids or gases: Gases produced in the reaction pass through this tube and can then be collected. [C] in biology, any hollow, cylinder-shaped structure in the body that carries air or liquid: the bronchial tubes
More examples

tube noun (CONTAINER)

B1 [C] a long, thin container made of soft metal or plastic that is closed at one end and has a small hole at the other, usually with a cover, used for storing thick liquids: a tube of toothpaste [C] Australian English informal for a can or bottle of beer: a tube of lager

tube noun (TRAIN)

the tube B1 [S] ( often the Tube) UK informal London's underground train system: I got the Tube to Camden Town. I go to work on the tube. a Tube station

tube noun (TELEVISION)

the tube [S] mainly US the television: What's on the tube this weekend?
(Definition of tube from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of tube?
Add Cambridge dictionaries to your browser to your website

Definitions of “tube” in other dictionaries

Word of the Day

glacial

made or left by a glacier

Word of the Day

Let’s celebrate! (words and phrases for parties)

by Kate Woodford,
December 17, 2014
​​​ With Christmas and New Year almost upon us, we thought it a good time to look at the language of parties and celebrations. First, let’s start with the word ‘party’ itself. To have or throw a party or, less commonly, to give a party is to arrange a party: We’re having a

Read More 

cinderella surgery noun

December 15, 2014
cosmetic surgery to the feet We have all heard of people having nose jobs, boob jobs and liposuction – but now a new trend growing in popularity in America: Cinderella surgery.

Read More