cathode ray


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cathode ray

n.
1. An electron emitted from the cathode of an electrical discharge tube, such as a cathode-ray tube.
2. A narrow beam of such electrons.

cath′ode ray`


n.
a flow of electrons emanating from a cathode in a vacuum tube and focused into a narrow beam.
[1875–80]

cathode ray

A beam of electrons streaming from the cathode (positively charged end) of a vacuum tube. When cathode rays strike the anode (negatively charged end) of the vacuum tube with sufficiently high energy, they produce x-rays.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cathode ray - a beam of electrons emitted by the cathode of an electrical discharge tube
electron beam, beam, ray - a group of nearly parallel lines of electromagnetic radiation
References in periodicals archive ?
75 Million Class Action Settlements for Purchasers of Televisions, Computer Monitors or Other Products Containing Cathode Ray Tubes (CRTs).
Technically speaking, a "boob tube" is a funnel-shaped device known as a cathode ray tube, which can be found inside an old TV.
LG Philips is a Hong Kong-based maker of cathode ray tubes (CRTs) used in televisions and monitors.
Sony's Bridgend plant makes the cathode ray tubes used in televisions assembled in Pencoed.
Those electronics are now banned from California landfills because the cathode ray tubes and liquid crystal display or LCD monitors contain toxic metals that can leach from dumps over time.
Nine of 30 cathode ray tubes from color computer monitors passed the standard shredded-parts test even though separate tests have shown that most of these tubes contain huge amounts of lead (SN: 11/4/00, p.
subsidiary will phase out production and marketing of cathode ray tubes for direct view color TV (CPT) by the end of April 2002.
Loosely based on a didactic timeline chronicling the history of media, Oursler's site allows visitors to explore such varied topics as ancient Egyptian modes of communication, the camera obscura, cathode ray tubes, and X-ray devices in a cross-disciplinary--and highly aestheticized--manner.
Today, most monitors are cathode ray tube (CRT) devices that employ the same technology as your television.
United States Environmental Protection Agency (EPA) Administrator Steve Johnson has signed a rule that is designed to facilitate the recycling of devices that contain cathode ray tubes (CRTs).
It will use the UK's first laser separation technology to recycle glass from cathode ray tubes.
Lexel Imaging Systems, wholly owned subsidiary of Video Display Corporation (Nasdaq: VIDE), today announced the acquisition of the Cathode Ray Tube (CRT) manufacturing operations of the Raytheon Company (NYSE: RTN.