Definition of tube noun from the Oxford Advanced American Dictionary

      

    tube

     noun
    noun
    NAmE//tub//
     
     
    jump to other results
    pipe
  1. 1[countable] a long hollow pipe made of metal, plastic, rubber, etc., through which liquids or gases move from one place to another see also cathode ray tube, inner tube, test tube
  2. 2[countable] a hollow object in the shape of a pipe or tube a bike's inner tube the cardboard tube from the center of a toilet roll
  3. container
  4. 3[countable] tube (of something) a long narrow container made of soft metal or plastic, with a lid, used for holding thick liquids that can be squeezed out of it a tube of toothpaste
  5. part of body
  6. 4[countable] a part inside the body that is shaped like a tube and through which air, liquid, etc. passes bronchial tubes The esophagus is the tube leading from the throat to the stomach. see also fallopian tube
  7. television
  8. 5 the tube [singular] (informal) the television
  9. in ear
  10. 6 [countable] a small tube placed in a child's ear in order to drain liquid from it
  11. Idioms
    go down the tube/tubes(informal)
     
    jump to other results
    (of a plan, company, situation, etc.) to fail The education system is going down the tubes.
See the Oxford Advanced Learner's Dictionary entry: tube