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De Forest

/də ˈfɔrəst/
IPA guide

Definitions of De Forest
  1. noun
    United States electrical engineer who in 1907 patented the first triode vacuum tube, which made it possible to detect and amplify radio waves (1873-1961)
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    example of:
    electrical engineer
    a person trained in practical applications of the theory of electricity
    artificer, discoverer, inventor
    someone who is the first to think of or make something
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