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

This Friday, she releases a star-studded debut album, Godspeed, which features Kylie Minogue, Joy Crookes and Jamie Principle.

From BBC • Oct. 16, 2024

Coachella's 2024 line-up has been praised for its South Asian representation, with the likes of Mercury prize nominee Joy Crookes - who's from South London and is half Bangladeshi - performing.

From BBC • Feb. 16, 2024

For Yus Jamal Crookes, who plays Dane, the role of music in his life is an important one.

From BBC • Nov. 12, 2023

Such are the experiments of Sir William Crookes.

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