Word Study
magnetron
WORDNET DICTIONARY
Noun magnetron has 1 sense
- magnetron(n = noun.artifact) - 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; is a kind of electron tube, thermionic tube, thermionic vacuum tube, thermionic valve, tube, vacuum tube
CIDE DICTIONARY
magnetron, 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 1.5]
OXFORD DICTIONARY
magnetron, n. an electron tube for amplifying or generating microwaves, with the flow of electrons controlled by an external magnetic field.
Etymology
MAGNET + -TRON
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