Crookes [ kr ooks ] SHOW IPA / krʊks / PHONETIC RESPELLING noun Sir William, 1832–1919, English chemist and physicist: discovered the element thallium and the cathode ray.
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Words nearby Crookes Cronyn
Crookes dark space
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use Crookes in a sentence
But the investigations of
Crookes were conducted with such care and competence, that it is very difficult to refuse our credence.
She then took Mr.
Crookes' hand and made the tour of the room, pressing the hand of each of us in turn.
In the experiments of
Crookes we saw that the weight of a board increased almost 1¼ pounds. British Dictionary definitions for Crookes noun 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
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Scientific definitions for Crookes 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.
The American Heritage® Science Dictionary
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