\ ˈtüb How to pronounce tube (audio) , ˈtyüb \

Definition of tube

1 : any of various usually cylindrical structures or devices: such as
a : a hollow elongated cylinder especially : one to convey fluids
b : a soft tubular container whose contents (such as toothpaste) can be removed by squeezing
c(1) : tunnel
(2) British : subway sense b
d : the basically cylindrical section between the mouthpiece and bell that is the fundamental part of a wind instrument
2a : a slender channel (such as a fallopian tube or a pollen tube) within a plant or animal body : duct
b : the narrow basal portion of a corolla with united petals or a calyx with united sepals
4a : electron tube especially : vacuum tube
b : cathode-ray tube especially : a television picture tube
5 : an article of clothing shaped like a tube a tube top tube socks
down the tube or down the tubes
: into a state of collapse or deterioration

Other Words from tube

tubed \ ˈtübd How to pronounce tube (audio) , ˈtyübd \ adjective
tubelike \ ˈtüb-​ˌlīk How to pronounce tube (audio) , ˈtyüb-​ \ adjective

Examples of tube in a Sentence

She was breathing oxygen through a tube. watched the liquid move through the tube between the flasks and recorded the movement in his chemistry notebook
Recent Examples on the Web From there, select the self-clean option, which will prompt the machine to scrub its tube and brush for you. Carly Totten, Better Homes & Gardens, 11 Aug. 2022 Also, unlike the Peptide Glazing Fluid, the Barrier Repair Cream is loaded in its tube. Megan Decker,, 27 July 2022 The station cited sources that said the 17-year-old Glen Allen, Virginia, resident fell from her tube. Bill Wagner, Baltimore Sun, 4 July 2022 Consumers — especially Millennials and Gen Z-ers — increasingly feel uncomfortable about sustainability issues such as wasteful packaging and the thousands of vans needed to be able to deliver your tube of toothpaste within 24 hours. Greg Petro, Forbes, 25 Mar. 2022 There's something about scraping the edge of your favorite eye cream container or squeezing every last drop from your daily cleanser tube that's both satisfying and saddening. Alex Warner,, 10 Mar. 2022 Just snap your toothpaste tube upside down into the device and slide your toothbrush head into the dispenser. Heath Owens, Good Housekeeping, 4 Mar. 2022 The brand-spanking-new formula, available in 25 shades, doesn't just come with a near-opaque payoff and creamy texture — staple skin-care ingredients such as hyaluronic acid, squalane, and turmeric are housed in its unique, triangular tube. Nicola Dall'asen, Allure, 4 Feb. 2022 Here’s the gist: over a voiceover of a Sesame Street character, Zoe, asking Elmo if her pet rock, Rocco, can float in his tube, a user explains a demand a wedding guest has made. Elise Taylor, Vogue, 21 Jan. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tube.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of tube

1651, in the meaning defined at sense 1

History and Etymology for tube

French, from Latin tubus; akin to Latin tuba trumpet

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Dictionary Entries Near tube

tub desk


tube cell

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Statistics for tube

Last Updated

13 Aug 2022

Cite this Entry

“Tube.” Dictionary, Merriam-Webster, Accessed 18 Aug. 2022.

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More Definitions for tube


\ ˈtüb How to pronounce tube (audio) , ˈtyüb \

Kids Definition of tube

1 : a long hollow cylinder used especially to carry fluids
2 : a long soft container whose contents (as toothpaste or glue) can be removed by squeezing
3 : a slender channel within a plant or animal body : duct
4 : a hollow cylinder of rubber inside a tire to hold air

Other Words from tube

tubelike \ ˈtüb-​ˌlīk , ˈtyüb-​ \ adjective


\ ˈt(y)üb How to pronounce tube (audio) \

Medical Definition of tube

 (Entry 1 of 2)

1 : a slender channel within a plant or animal body : duct — see bronchial tube, eustachian tube, fallopian tube
2a : an often complex piece of laboratory or technical apparatus usually of glass and commonly serving to isolate or convey a product of reaction a distillation tube
b : test tube
3 : a soft tubular container whose contents (as toothpaste) can be dispensed by squeezing
4 : a hollow cylindrical device (as a cannula) used for insertion into bodily passages or hollow organs for removal or injection of materials


transitive verb
tubed; tubing

Medical Definition of tube (Entry 2 of 2)

: to furnish with, enclose in, or pass through a tube the patient is then anesthetized … and tubedAnesthesia Digest

More from Merriam-Webster on tube

Nglish: Translation of tube for Spanish Speakers

Britannica English: Translation of tube for Arabic Speakers Encyclopedia article about tube


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