magnetron
noun
mag·ne·tron
ˈmag-nə-ˌträn 
: 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
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Klystrons and their cousins, cavity magnetrons (found in ordinary microwave ovens), are quite efficient because of their simplicity.
—
IEEE Spectrum, 24 June 2024
Understandably curious about just what the heck had happened, Spencer ran another test with the magnetron.
—Matt Blitz, Popular Mechanics, 24 Mar. 2023
In 1945, while standing near an active magnetron, a chocolate bar melted in his pocket — and a new idea was born.
—Allison Futterman, Discover Magazine, 18 July 2022
See All Example Sentences for magnetron
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IEEE Spectrum, 24 June 2024
Understandably curious about just what the heck had happened, Spencer ran another test with the magnetron.
—Matt Blitz, Popular Mechanics, 24 Mar. 2023
In 1945, while standing near an active magnetron, a chocolate bar melted in his pocket — and a new idea was born.
—Allison Futterman, Discover Magazine, 18 July 2022
See All Example Sentences for magnetron
Cite this Entry
“Magnetron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magnetron. Accessed 10 Sep. 2025.
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magnetron
noun
mag·ne·tron
ˈmag-nə-ˌträn
: a diode vacuum tube in which the flow of electrons is controlled by an externally applied magnetic field to generate power at microwave frequencies
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