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Definition 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).
Exact synonyms: Father Of Radio, Lee De Forest
Generic synonyms: Electrical Engineer, Artificer, Discoverer, Inventor
Generic synonyms: Electrical Engineer, Artificer, Discoverer, Inventor