Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A microwave tube in which electrons generated from a heated cathode are affected by magnetic and electric fields in such a way as to produce microwave radiation used in radar and in microwave ovens.
Wiktionary
- n. physics a device in which electrons are made to resonate in a specially shaped chamber and thus produce microwave radiation; used in radar, and in microwave ovens
GNU Webster's 1913
- n. a diode vacuum tube in which the flow of electrons from a central cathode to a cylindrical anode is controlled by crossed magnetic and electric fields; used mainly in microwave oscillators.
WordNet 3.0
- n. a diode vacuum tube in which the flow of electrons from a central cathode to a cylindrical anode is controlled by crossed magnetic and electric fields; used mainly in microwave oscillators
Etymologies
- magne(t) + -tron. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“The device consists of the magnetron from a 600-watt domestic microwave oven and concentrates its power into a volume of just one cubic centimetre.”
“Inside a microwave oven, a device known as a magnetron converts electrical power into short radio waves, which are absorbed by water, fats and sugars found in food, heating them up.”
“There were also components from a microwave oven labelled magnetron.”
“A vital component of military radar systems since World War II, a magnetron is a kind of vacuum tube that serves as the frequency source in microwave ovens, radar systems, and other high-power microwave circuits.”
“A magnetron is a type of vacuum tube used as the frequency source in microwave ovens, radar systems and other high-power microwave circuits.”
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“Cook is working with Eaton Corporation, a leading manufacturer of fluid power equipment, using another, more commercial-scale technique known as magnetron sputtering to lay down a wear-resistant coating.”
“What proved to be a key component for operating radar was a device of complex geometry called the cavity magnetron, which converted electrical current into microwaves.”
“But in 1940, the British had only a dozen prototypes of the magnetron.”
“British scientists, desperate to produce a device that would allow the RAF to anticipate such attacks, partnered with American scientists to perfect the magnetron—in other words, radar.”
“The 2J50 magnetron was also used in some of the early microwave ovens.”
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