- cathode ray
- noun Date: 1880 1. plural the high-speed electrons emitted in a stream from the heated cathode of a vacuum tube 2. a stream of electrons emitted from the cathode of a vacuum tube — usually used in plural
New Collegiate Dictionary. 2001.
cathode ray
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Cathode ray — Cathode rays (also called an electron beam or e beam) are streams of electrons observed in vacuum tubes, i.e. evacuated glass tubes that are equipped with at least two electrodes, a cathode (negative electrode) and an anode (positive electrode)… … Wikipedia
Cathode ray — Cathode Cath ode, n. [Gr. ? descent; ? down + ? way.] (Physics) The part of a voltaic battery by which the electric current leaves substances through which it passes, or the surface at which the electric current passes out of the electrolyte; the … The Collaborative International Dictionary of English
cathode ray — a flow of electrons emanating from a cathode in a vacuum tube and focused into a narrow beam. [1875 80] * * * Stream of electrons leaving the negative electrode, or cathode, in an evacuated or gas filled discharge tube or emitted by a heated… … Universalium
cathode ray — noun Cathode ray is used before these nouns: ↑tube … Collocations dictionary
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 — 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 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 — 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 — ► 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 — [dt. »Kathodenstrahlröhre«], CRT … Universal-Lexikon
cathode-ray oscilloscope — n OSCILLOSCOPE … Medical dictionary
