magnetron

noun
mag·​ne·​tron | \ ˈmag-nə-ˌträn How to pronounce magnetron (audio) \

Definition of magnetron

: a vacuum tube in which the flow of electrons is controlled by an applied magnetic field to generate power at microwave frequencies

Examples of magnetron in a Sentence

Recent Examples on the Web Understandably curious just what the heck had happened, Spencer ran another test with the magnetron. Matt Blitz, Popular Mechanics, 2 Sep. 2021 Understandably curious just what the heck had happened, Spencer ran another test with the magnetron. Matt Blitz, Popular Mechanics, 2 Sep. 2021 According to Michalak, at the time Spencer was trying to improve the power level of the magnetron tubes to be used in radar sets. Matt Blitz, Popular Mechanics, 2 Sep. 2021 That power is transmitted through the magnetron at a high frequency, which then allows water, fats and sugars to absorb it and heat up. Chiara Vercellone, USA TODAY, 12 Nov. 2019 Before the Second World War, magnetron tubes were clunky and expensive to build, but the Allied Forces’ strategic reliance on radar required them by the thousands. Helen Rosner, The New Yorker, 3 Mar. 2021 From there, the magnetron converts electricity from your home into some pretty intense radio waves. Courtney Linder, Popular Mechanics, 6 Aug. 2020 The chip that drives the microwave blindly starts and stops the magnetron to heat expired Kung Pao chicken. Frank O’brien, Ars Technica, 30 Jan. 2020 Ionized by sunlight, the barium would create a ring of moving plasma that emits radio waves: essentially a space version of a magnetron, the gadget used in microwave ovens. Richard Stone, Science | AAAS, 26 Dec. 2019 See More

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

First Known Use of magnetron

1921, in the meaning defined above

History and Etymology for magnetron

blend of magnet and -tron

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Time Traveler for magnetron

Time Traveler

The first known use of magnetron was in 1921

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Dictionary Entries Near magnetron

magnetotail

magnetron

magnet school

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Cite this Entry

“Magnetron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magnetron. Accessed 30 Jun. 2022.

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More Definitions for magnetron

magnetron

noun
mag·​ne·​tron | \ ˈmag-nə-ˌträn How to pronounce magnetron (audio) \

Medical Definition of magnetron

: a diode vacuum tube in which the flow of electrons is controlled by an externally applied magnetic field to generate power at microwave frequencies

More from Merriam-Webster on magnetron

Britannica.com: Encyclopedia article about magnetron

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