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Book Glossary

tube

Dictionary definition · tube

noun

  1. conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
  2. electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
  3. a hollow cylindrical shape
  4. (anatomy) any hollow cylindrical body structure
  5. 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’"

verb

  1. provide with a tube or insert a tube into
  2. convey in a tube"inside Paris, they used to tube mail"
  3. ride or float on an inflated tube"We tubed down the river on a hot summer day"
  4. place or enclose in a tube

Similar words

tubingelectron tubethermionic tubethermionic vacuum tubethermionic valvevacuum tubepipetube-shaped structuremetrosubway

Source: Open English WordNet (CC BY 4.0).