Definition of Tube

1. Noun. Conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases.

2. Verb. Provide with a tube or insert a tube into.
Generic synonyms: Furnish, Provide, Render, Supply

3. Noun. Electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope.

4. Verb. Convey in a tube. "Inside Paris, they used to tube mail"
Generic synonyms: Bring, Convey, Take
Derivative terms: Tubing

5. Noun. A hollow cylindrical shape.
Exact synonyms: Pipe
Generic synonyms: Cylinder

6. Verb. Ride or float on an inflated tube. "We tubed down the river on a hot summer day"
Generic synonyms: Ride

7. Noun. (anatomy) any hollow cylindrical body structure.
Exact synonyms: Tube-shaped Structure
Generic synonyms: Anatomical Structure, Bodily Structure, Body Structure, Complex Body Part, Structure
Specialized synonyms: Tubule, Salpinx, Cochlea, Vas, Vessel
Category relationships: Anatomy, General Anatomy
Derivative terms: Tubal

8. Verb. Place or enclose in a tube.
Generic synonyms: Enclose, Enfold, Envelop, Enwrap, Wrap

9. Noun. An electric railway operating below the surface of the ground (usually in a city). "In Paris the subway system is called the `metro' and in London it is called the `tube' or the `underground'"

Definition of Tube

1. n. A hollow cylinder, of any material, used for the conveyance of fluids, and for various other purposes; a pipe.

2. v. t. To furnish with a tube; as, to tube a well.

3. n. A tunnel for a tube railway; also (Colloq.), a tube railway.

Definition of Tube

1. Proper noun. (informal) The London Underground ¹

2. Noun. Anything that is hollow and cylindrical in shape. ¹

3. Noun. An approximately cylindrical container, usually with a crimped end and a screw top, used to contain and dispense semi-liquid substances. ¹

4. Noun. (British colloquial) The London Underground railway system, originally referred to the lower level lines that ran in tubular tunnels as opposed to the higher ones which ran in rectangular section tunnels. (Often ''the tube''.) ¹

5. Noun. (Australia slang) A tin can containing beer (or other beverage?) ¹

6. Noun. (surfing) A wave which pitches forward when breaking, creating a hollow space inside. ¹

7. Noun. (North America colloquial) A television. Also, derisively, boob tube. British: telly ¹

8. Verb. To make or use tubes ¹

¹ Source:

Definition of Tube

1. to provide with a tube (a long, hollow cylinder) [v TUBED, TUBING, TUBES]

Medical Definition of Tube

1. An elongated hollow cylindrical organ or instrument. Origin: L. Tubus This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Tube Pictures

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Lexicographical Neighbors of Tube

tube (current term)
tube-nosed bat
tube-nosed fruit bat
tube-shaped structure
tube cast
tube curare
tube feeding syndrome
tube feeding syndromes
tube foot
tube sock
tube socks

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