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Definitions from WordNet

Definitions from the Web

Crookes Tube

A Crookes tube is a sealed glass tube used in early scientific experiments to investigate the properties of cathode rays.

Definition

1. Noun: A vacuum tube containing a partial vacuum that produces cathode rays when an electric current is passed through it.

Senses

1. Sense 1: A device for producing cathode rays.
2. Sense 2: The tube used in such a device.

Sample Sentences

1. The Crookes tube was an essential instrument in the study of cathode rays.
2. Scientists used a Crookes tube to demonstrate the phenomenon of fluorescence.
3. When high voltage is applied to the electrodes, the Crookes tube emits a characteristic glow.

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