Crookes

American  

[krooks] / krʊks /

noun

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

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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

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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.

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Example Sentences

The following summer, Crookes played Glastonbury's Pyramid Stage for the first time, bursting into tears at the scale of the occasion.

From BBC • Sep. 18, 2025

When Chris Brain first began attending services at St Thomas Crookes in Sheffield in the 1980s, he was seen as charismatic, engaging and passionate.

From BBC • Aug. 21, 2025

Doris Ludlam, 80, Bridget Bourke, 88, Irene Crookes, 79, and Ethel Hall, 86, were being treated on orthopaedic wards where Campbell worked in Leeds in 2002 and developed unexplained hypoglycaemia.

From BBC • Jun. 26, 2025

Johnson sang with Jungle when they headlined the West Holts Stage last year, while his bandmate Barney Lister is an award-nominated writer/producer for acts like Joy Crookes, Celeste, Olivia Dean and Obongjayar.

From BBC • Jun. 23, 2025

Repulsive actions in a gaseous medium are however, as Prof. Crookes has shown, enhanced by molecular bombardment.

From The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting by Martin, Thomas Commerford