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Crookes

American  
[krooks] / krʊks /

noun

  1. Sir William, 1832–1919, English chemist and physicist: discovered the element thallium and the cathode ray.


Crookes British  
/ krʊks /

noun

  1. Sir William. 1832–1919, English chemist and physicist: he investigated the properties of cathode rays and invented a type of radiometer and the lens named after him

"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

Crookes Scientific  
/ krks /
  1. British chemist and physicist who discovered thallium in 1861 and invented the radiometer (1873–76). He also developed the Crookes tube, a modified vacuum tube that was later used by W.C. Roentgen and J.J. Thomson in experiments that led to the discovery of x-rays and the electron, respectively.


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.

See Examples For:

With their support, and as her mental health improved, Crookes began to rediscover herself.

From BBC Sep. 18, 2025

The role took Crookes, who plays an older sister to the lead character, all the way to the Venice Film Festival, where the movie won the coveted audience award.

From BBC Sep. 18, 2025

It's a journey that's seen South Asian music and artists - from Joy Crookes to Zayn Malik - make further strides into the mainstream.

From BBC Sep. 12, 2025

Also previewing new material was London soul-pop singer Joy Crookes.

From BBC Jun. 29, 2025

Crookes, Wallace, Richet, Oliver Lodge, have found a solid basis of fact and one worthy their examination, to such an extent that they have given to it years of study.

From Mysterious Psychic Forces An Account of the Author's Investigations in Psychical Research, Together with Those of Other European Savants by Flammarion, Camille

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