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Definition of tube
1 : any of various usually cylindrical structures or devices: such asa : a hollow elongated cylinder; especially : one to convey fluidsb : a soft tubular container whose contents (such as toothpaste) can be removed by squeezingc (1) : tunnel (2) British : subway bd : 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 : ductb : the narrow basal portion of a corolla with united petals or a calyx with united sepals
3 : inner tube
4a : electron tube; especially : vacuum tubeb : cathode-ray tube; especially : a television picture tubec : television
5 : an article of clothing shaped like a tube a tube top tube socks
down the tube
ordown the tubes
: into a state of collapse or deterioration
From the M-W Editors
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 of tube from the Web
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Medicaid paid for nurses, a feeding tube and special food for Cara Coleman’s 11-year-old daughter, Justice, until the girl’s death in March.
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Ultimately, a lot will ride on the chemistry between the two men, and much like any elements mingling in the same test tube for the first time, the reaction is unpredictable.
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The latent Humberts among us might like those budding hard bodies on the tube, but there seems to be a cost in ceding the cultural landscape to the wrinkle-free.
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Squeeze a little bit of the gloss out of the tube — try mark.
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Each colored smoke firework is a cardboard cylinder tube that measures about 1 inch in diameter and 5 inches long and has the UPC number 027736036561.
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Gates open at 1 p.m. The first band hits the stage at 2:15 p.m., the headliner cranks up at 6:45 p.m., and fireworks end the night at 9:15 p.m. Admission and parking are free, but tube rentals are $6 (with a $2 deposit).
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At the Blacklight Slide, participants in inner tubes descend a slide filled with neon, glow-in-the-dark water that makes for an enlightening experience.
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Put food on the tray that slides in and out of the center of the tube, and orient it towards the sun.
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.
Origin and Etymology of tube
French, from Latin tubus; akin to Latin tuba trumpet
TUBE Defined for English Language Learners
tube
playDefinition of tube for English Language Learners
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: a long, hollow object that is used especially to control the flow of a liquid or gas
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: an object shaped like a pipe
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: 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 Defined for Kids
tube
playDefinition of tube for Students
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
5 : electron tube
6 : television 2
tubelike
\ˈtüb-ˌlīk, ˈtyüb-\ adjectiveMedical Dictionary
Medical Definition of tube
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 tubeb: 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
tube
Medical Definition of tube
tubed
;tubing
: to furnish with, enclose in, or pass through a tube the patient is then anesthetized…and tubed—Anesthesia Digest
Learn More about tube
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See 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
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