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

---

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

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

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

From BBC • Jun. 29, 2025

"Joy Crookes is an artist who I've never seen live before who I love to hang out with on the radio," he says.

From BBC • May 22, 2025

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

From BBC • Nov. 12, 2023

Professor Crookes amused himself, at times, by replying to these fantastic attacks, but, naturally, without convincing his uncompromising opponents.

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