tube

[ toob, tyoob ]

/ tub, tyub /

noun

a hollow, usually cylindrical body of metal, glass, rubber, or other material, used especially for conveying or containing liquids or gases.

a small, collapsible, cylinder of metal or plastic sealed at one end and having a capped opening at the other from which paint, toothpaste, or some other semifluid substance may be squeezed.

Anatomy, Zoology. any hollow, cylindrical vessel or organ: the bronchial tubes.

Botany.

any hollow, elongated body or part.
the united lower portion of a gamopetalous corolla or a gamosepalous calyx.

inner tube.

Electronics. electron tube.

Informal.

television.
a television set.

mailing tube.

the tubular tunnel in which an underground railroad runs.

the railroad itself.

Surfing Slang. the curled hollow formed on the underside of a cresting wave.

British. subway (def. 1).

Australian Slang. a can of beer.

Older Slang. a telescope.

verb (used with object), tubed, tub·ing.

to furnish with a tube or tubes.

to convey or enclose in a tube.

to form into the shape of a tube; make tubular.

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Idioms for tube

down the tube / tubes, Informal. into a ruined, wasted, or abandoned state or condition.

Origin of tube

First recorded in 1590–1600, tube is from the Latin word tubus pipe

OTHER WORDS FROM tube

tubeless, adjectivetubelike, adjectivemul·ti·tube, adjective

Words nearby tube

tubal ligation, tubal pregnancy, tubate, tubby, tub chair, tube, tube cell, tubectomy, tubed flap, tube fly, tube foot

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for tube

This bike has a quick-release to hold the seatpost in the seat tube.
The most secure ways to lock up your bike|By Michael Frank/Cycle Volta|August 26, 2020|Popular Science
The study also reported that in a test tube, GC376 can stop other coronaviruses besides the feline one.
How two coronavirus drugs for cats might help humans fight COVID-19|Erin Garcia de Jesus|August 11, 2020|Science News
She remained on a ventilator and tube feedings for nearly five years.
New guidance on brain death could ease debate over when life ends|Laura Sanders|August 10, 2020|Science News
In experimental systems, researchers have attached different sorts of molecules to strips of paper, which can be dipped in a tube of saliva to produce the results of a home test in 30 minutes or less.
The Case for Rapid At-Home COVID Testing for Everyone - Facts So Romantic|Robert Bazell|August 5, 2020|Nautilus

Magically, a roll of toilet paper, power tool, or tube of toothpaste is there just when you need it.
Why We Need Mass Automation to Pandemic-Proof the Supply Chain|Derik Pridmore|July 10, 2020|Singularity Hub
Also, because a tube of lipstick stands in for the “i” in “science.”
Girls Love Science. We Tell Them Not To.|Tauriq Moosa|July 17, 2014|DAILY BEAST
Having a tube jabbed into an open wound in your throat is clearly not pleasant.
My Friend, Roger Ebert: Pulitzer Prize Winner Tom Shales on the Moving Documentary ‘Life Itself’|Tom Shales|July 6, 2014|DAILY BEAST
IranWire: Why did you decide to respond to Iranian state television by publishing a video of you singing in a London Tube station?
Iran Says Take Off the Veil—and Be Raped|IranWire|June 9, 2014|DAILY BEAST
When the tube heats up, it creates steam that can be injected into the oil well.
Renewables Can Make Fossil Fuel More Efficient|The Daily Beast|May 29, 2014|DAILY BEAST
If ever I give up my music," he says, "you might see me on the tube one day with a hood over my head climbing into a ring.
The Stacks: The Neville Brothers Stake Their Claim as Bards of the Bayou|John Ed Bradley|April 27, 2014|DAILY BEAST
And listening, there comes up to him from the depths faintly, through the tube: "I'm uninjured, but am bound and helpless."
Miss Dividends|Archibald Clavering Gunter
Breathing through a tube, if continued for a long time, interferes with the natural growth of the air-passage above it.
A System of Operative Surgery, Volume IV (of 4)|Various
It will also help greatly to make a water-tight joint around the tube.
Boys' Book of Model Boats|Raymond Francis Yates
Again there was no sensory reaction to passing through the Tube.
Gone Fishing|James H. Schmitz
Allow the bulb and tube to cool, then repeat the heating once more.
A Handbook of Laboratory Glass-Blowing|Bernard D. Bolas

British Dictionary definitions for tube

tube

/ (tjuːb) /

noun

a long hollow and typically cylindrical object, used for the passage of fluids or as a container

a collapsible cylindrical container of soft metal or plastic closed with a cap, used to hold viscous liquids or pastes

anatomy

short for Eustachian tube, Fallopian tube
any hollow cylindrical structure

botany

the lower part of a gamopetalous corolla or gamosepalous calyx, below the lobes
any other hollow structure in a plant

the tube British

Also called: the underground an underground railway systemUS and Canadian equivalent: subway
the tunnels through which the railway runs
the train itself
(capital) trademark the London underground railway system

electronics

another name for valve (def. 3)
See electron tube, cathode-ray tube, television tube

the tube slang a television set

British slang a stupid or despicable person

Australian slang a bottle or can of beer

surfing the cylindrical passage formed when a wave breaks and the crest tips forward

an archaic word for telescope

verb (tr)

to fit or supply with a tube or tubes

to carry or convey in a tube

to shape like a tube

Derived forms of tube

tubeless, adjectivetube-like, adjective

Word Origin for tube

C17: from Latin tubus

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for tube

tube

[ tōōb ]

n.

A hollow cylinder, especially one that conveys a fluid or functions as a passage.

An anatomical structure or organ having the shape or function of a tube; a duct.

Idioms and Phrases with tube

tube

see down the tubes.

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