1. (n.)tube a hollow, usu. cylindrical body of metal, glass, rubber, etc., used esp. for conveying or containing liquids or gases.
2. tube a small collapsible cylinder of metal or plastic sealed at one end and having a capped opening at the other from which a semifluid substance, as paint or toothpaste, may be squeezed.
3. tube any hollow, cylindrical vessel or organ: the bronchial tubes.
4. tube the elongated lower part of a united sepal or corolla of a flower.
5. tube television.
6. tube a cylindrical garment without sleeves, pockets, or closures, usu. of stretch fabric, worn as a blouse, dress, skirt, etc.
10. tube Surfing. the curled hollow formed on the underside of a cresting wave.
11. (v.t.)tube to furnish with a tube.
12. tube to convey or enclose in a tube.
13. tube to form into the shape of a tube; make tubular.
14. (v.i.)tube to float down a river on an inner tube.
15. tube down the tube(s), into a wasted or abandoned state.
Etymology: (1590–1600; < L tubus pipe)
Definition of 'TUBE'
Princeton's WordNet
1. (noun)tube, tubing conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
2. (noun)tube, vacuum tube, thermionic vacuum tube, thermionic tube, electron tube, thermionic valve electronic device consisting of a system of electrodes arranged in an evacuated glass or metalenvelope
4. (noun)tube, tube-shaped structure (anatomy) any hollow cylindrical body structure
5. (verb)metro, tube, underground, subway system, subway an electricrailway 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'"
4. tube a partinside the body that functions like a tube the tubes leading from the kidney to the bladder
Definition of 'TUBE'
Webster Dictionary
1. (noun)TUBE a hollow cylinder, of any material, used for the conveyance of fluids, and for various other purposes; a pipe
2. (noun)TUBE a telescope
3. (noun)TUBE a vessel in animal bodies or plants, which conveys a fluid or other substance
4. (noun)TUBE the narrow, hollow part of a gamopetalous corolla
5. (noun)TUBE a priming tube, or friction primer. See under Priming, and Friction
6. (noun)TUBE a smallpipe forming part of the boiler, containing water and surrounded by flame or hot gases, or else surrounded by water and forming a flue for the gases to pass through
7. (noun)TUBE a more or less cylindrical, and often spiral, case secreted or constructed by many annelids, crustaceans, insects, and other animals, for protection or concealment. See Illust. of Tubeworm