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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

cath′ode ray`


n.
a flow of electrons emanating from a cathode in a vacuum tube and focused into a narrow beam.
[1875–80]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

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.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The performance of these microfuel cells was found to be severely hampered by the low transport efficiency of oxygen in the cathode stream.
However, since the previous researchers used oxygen solution as the oxidant, the performance of these micro fuel cells was found to be restricted severely by the low transport efficiency of oxygen in the cathode stream.