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Crookes tube

American  

noun

Electronics.
  1. a form of cathode-ray tube.


Crookes tube British  

noun

  1. a type of cathode-ray tube in which the electrons are produced by a glow discharge in a low-pressure gas

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Crookes tube

First recorded in 1880–85; after Sir W. Crookes

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Grubbe simply positioned the Crookes tube over the tumor and turned on the electric current for a few minutes, with little understanding of what would be the appropriate dose.

From Slate • May 4, 2016

The Crookes tube, refined in mechanism, is the common x-ray tube of today, useful to physicists, metallurgists, biologists, doctors, dentists.

From Time Magazine Archive

When I arrived, Professor Wright was at work with a Crookes tube, nearly spherical in shape, and about five inches in diameter—the one with which he has taken all his shadow pictures.

From McClure's Magazine, Vol. 6, No. 5, April, 1896 by Various

In 1895 Rontgen drew closer attention to the Crookes tube by discovering the rays which he called X-rays, but which now bear his name.

From The Story of Evolution by McCabe, Joseph

He was following up the work of Lenard, and he one day covered a "Crookes tube" with some black stuff.

From The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told by Thomson, J. Arthur