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 The researchers expect that the whole kit, including the electron gun, can be encapsulated on a chip. — Chris Lee, Ars Technica, 22 July 2019 Varying the output of the electron gun, however, can create a lopsided force deliberately, permitting the craft to be steered. — The Economist, 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.