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
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Varying the output of the electron gun, however, can create a lopsided force deliberately, permitting the craft to be steered.
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
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Britannica.com: Encyclopedia article about electron gun
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