magnetron

noun
mag·ne·tron | \ˈmag-nə-ˌträn \

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, "The Amazing True Story of How the Microwave Was Invented by Accident," 24 Feb. 2016 Spencer earned several patents while working on more efficient and effective ways to mass-produce radar magnetrons. Matt Blitz, Popular Mechanics, "The Amazing True Story of How the Microwave Was Invented by Accident," 24 Feb. 2016 So Percy Spencer, an engineer at Raytheon, was tasked with ramping up magnetron production. Timothy J. Jorgensen, Smithsonian, "Hot Food, Fast: The Home Microwave Oven Turns 50," 16 Mar. 2017 During World War II, the American military couldn’t get enough magnetrons to satisfy their radar needs. Timothy J. Jorgensen, Smithsonian, "Hot Food, Fast: The Home Microwave Oven Turns 50," 16 Mar. 2017 The air from the magnetron cooling will then be re-directed to the exterior. Kevin Kelly, WIRED, "Using a Microwave to Melt Metal," 22 May 2007 Blame it on the magnetron, the cooking element of every microwave oven. Randy Rieland, Smithsonian, "This Oven Could Change How We Cook," 17 Feb. 2017

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.

See More

First Known Use of magnetron

1921, in the meaning defined above

History and Etymology for magnetron

blend of magnet and -tron

Keep scrolling for more

Learn More about magnetron

Statistics for magnetron

Look-up Popularity

Time Traveler for magnetron

The first known use of magnetron was in 1921

See more words from the same year

Keep scrolling for more

More Definitions for magnetron

magnetron

noun
mag·ne·tron | \ˈmag-nə-ˌträn \

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

Comments on magnetron

What made you want to look up magnetron? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a state of commotion or excitement

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

  • the-triumph-of-venus-by-alessandro-magnasco
  • Boreal comes from the name of the ancient Greek god of which wind?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!