magnetron

 : 
Noun
 : 
mag=ne=tron

WORDNET DICTIONARY

Noun magnetron has 1 sense

CIDE DICTIONARY

magnetronn. 
     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

For further exploring for "magnetron" in Webster Dictionary Online


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