cathode-ray tube
noun Date: 1905 a vacuum tube in which a beam of electrons is projected on a phosphor-coated screen to produce a luminous spot at a point on the screen determined by the effect on the electron beam of a variable magnetic field within the tube

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • cathode ray tube — UK US noun [countable] [singular cathode ray tube plural cathode ray tubes] physics a piece of equipment in televisions and some computers that creates the image on the screen. A beam of high energy …   Useful english dictionary

  • cathode-ray tube — n a vacuum tube in which a beam of electrons is projected on a fluorescent screen to produce a luminous spot * * * a vacuum tube in which the cathode rays are accelerated as a beam to form luminous spots on a fluorescent screen …   Medical dictionary

  • cathode ray tube — ► NOUN ▪ a high vacuum tube in which cathode rays produce a luminous image on a fluorescent screen, used in televisions and visual display units …   English terms dictionary

  • cathode-ray tube — cathode ray tubes N COUNT A cathode ray tube is a device in televisions and computer terminals which sends an image onto the screen. [TECHNICAL] …   English dictionary

  • cathode ray tube — n a piece of equipment used in televisions and computers, in which ↑electrons from the cathode produce an image on a screen …   Dictionary of contemporary English

  • cathode ray tube — (CRT) vacuum tube which displays images when an electron beam falls on a phosphorescent surface (this technology is commonly used in computer monitors and televisions) …   English contemporary dictionary

  • cathode-ray tube — [kath′ōd′ rā΄] n. a vacuum tube in which a stream of electrons is electromagnetically focused on a fluorescent screen, producing lighted dots: such tubes are used as oscilloscopes and picture tubes: abbrev. CRT …   English World dictionary

  • Cathode Ray Tube —   [dt. »Kathodenstrahlröhre«], CRT …   Universal-Lexikon

  • cathode ray tube — cathode ray ,tube noun count SCIENCE a piece of equipment in televisions and computers that sends an image to the screen …   Usage of the words and phrases in modern English

  • Cathode ray tube — Cutaway rendering of a color CRT: 1. Three Electron guns (for red, green, and blue phosphor dots) 2. Electron beams 3. Focusing coils 4. Deflection coils 5. Anode connection 6. Mask for separating beams for red,… …   Wikipedia

  • cathode ray tube — UK / US noun [countable] Word forms cathode ray tube : singular cathode ray tube plural cathode ray tubes physics a piece of equipment in televisions and some computers that creates the image on the screen. A beam of high energy electrons is… …   English dictionary

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