tube

noun
\ 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

Keep scrolling for more

Other Words from tube

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

That would allow the MTA to provide full service during peak hours, while maintaining a reduced service through a single tube during off hours. Paul Berger, WSJ, "MTA Board Emergency Meeting to Discuss Hiring Consultant to Review Revised L-Train Plan," 14 Jan. 2019 These drugs are usually injected into your vein or given by mouth, but in some cases they may be injected through a thin tube directly into your abdominal cavity, the ACS says. Korin Miller, SELF, "What Are My Options for Ovarian Cancer Treatment?," 13 Dec. 2018 Some shots are administered by sticking a needle through a rubber tube to draw out the medicine before the needle is used in the skin, which can dull the needle and be more painful, Stewart said. Erica Sweeney, Teen Vogue, "Why Do Some Vaccines Hurt More Than Others?," 24 Oct. 2018 Ultimately, Delft got its pod to work, but the pod only hit a top speed of 88mph before stopping midway through the tube. Megan Geuss, Ars Technica, "Student engineers build hyperloop test pods with commercial-class top speeds," 23 July 2018 Starting in the 1950s, a marshmallow Peep was made by hand-squeezing marshmallow through pastry tubes, according to the candy's website, Just Born. Jolie Lee, USA TODAY, "Why egg hunts, bunnies and Peeps? Easter traditions explained," 31 Mar. 2018 The goodie box — which features Ouai's trusty treatment masque, a coveted tube of Summer Fridays' Jet Lag mask, and a headband — was made for living your best spa life, even if the spa happens to be your bedroom. Lauren Rearick, Teen Vogue, "You Can Now Mask Your Entire Head for $22," 18 Dec. 2018 Usually, the quickest way to make a breakout disappear is by reaching for a tube of foundation and/or concealer, but is that really what’s best for your skin in the long run? Tiffany Dodson, SELF, "Is It Harmful to Use Makeup to Cover Acne?," 9 Nov. 2018 So, yes, the tube of toothpaste on your bathroom counter does have ingredients that can help with pimples. Kara Wahlgren, Seventeen, "Can Toothpaste Really Get Rid of Pimples?," 18 Sep. 2018

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.

See More

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

Keep scrolling for more

Learn More about tube

Statistics for tube

Last Updated

8 Mar 2019

Look-up Popularity

Time Traveler for tube

The first known use of tube was in 1651

See more words from the same year

Keep scrolling for more

More Definitions for tube

tube

noun

English Language Learners Definition of tube

: a long, hollow object that is used especially to control the flow of a liquid or gas
: an object shaped like a pipe
: a soft, long, narrow container that has a small opening at one end and that contains a soft material which can be pushed out by squeezing

tube

noun
\ 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

tube

noun
\ 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
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

Keep scrolling for more

More from Merriam-Webster on tube

Rhyming Dictionary: Words that rhyme with tube

Thesaurus: All synonyms and antonyms for tube

Spanish Central: Translation of tube

Nglish: Translation of tube for Spanish Speakers

Britannica English: Translation of tube for Arabic Speakers

Britannica.com: Encyclopedia article about tube

Comments on tube

What made you want to look up tube? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a flaw that causes the downfall of a hero

Get Word of the Day daily email!

Test Your Vocabulary

A Green Quiz

  • shamrock
  • What is the best definition of green-eyed monster?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!