electron gun

noun

Definition of electron gun 

: an electron-emitting cathode and its surrounding assembly (such as electromagnets in a cathode-ray tube) for directing, controlling, and focusing a beam of electrons

Examples of electron gun in a Sentence

Recent Examples on the Web

Varying the output of the electron gun, however, can create a lopsided force deliberately, permitting the craft to be steered. The Economist, "Space travelA new way of propelling spacecraft may open up the asteroid belt," 21 Sep. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'electron gun.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of electron gun

1924, in the meaning defined above

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The first known use of electron gun was in 1924

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