• noun
• synonym
• antonym

• Crookes tube (noun)
  1. the original gas-discharge cathode-ray tube
• Eustachian tube (noun)
  1. either of the paired tubes connecting the middle ears to the nasopharynx; equalizes air pressure on the two sides of the eardrum
• Fallopian tube (noun)
  1. either of a pair of tubes conducting the egg from the ovary to the uterus
• Geiger tube (noun)
  1. an ionization chamber contained in a tube in a Geiger counter
• Geiger-Muller tube (noun)
  1. an ionization chamber contained in a tube in a Geiger counter
• Kundt's tube (noun)
  1. a measuring instrument used to measure the speed of sound
• Pitot tube (noun)
  1. measuring instrument consisting of a right-angled tube with an open end that is directed in opposition to the flow of a fluid and used to measure the velocity of fluid flow
  2. measuring instrument consisting of a combined Pitot tube and static tube that measures total and static pressure; used in aircraft to measure airspeed
• Pitot-static tube (noun)
  1. measuring instrument consisting of a combined Pitot tube and static tube that measures total and static pressure; used in aircraft to measure airspeed
• Venturi tube (noun)
  1. a short tube inserted into a pipeline and used to measure the quantity of a liquid that is flowing in the pipeline
• X-ray tube (noun)
  1. a vacuum tube containing a metal target onto which a beam of electrons is directed at high energy for the generation of X rays
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