De Forest

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De For·est

 (dĭ fôr′ĭst, fŏr′-), Lee 1873-1961.
American electrical engineer who patented the triode electron tube (1907) that made possible the amplification and detection of radio waves. He originated radio news broadcasts in 1916.

De Forest

(də ˈfɒrɪst)
(Biography) Lee. 1873–1961, US inventor of telegraphic, telephonic, and radio equipment: patented the first triode valve (1907)

De For•est

(dɪ ˈfɔr ɪst, ˈfɒr-)
Lee, 1873–1961, U.S. inventor.


(diˈfɔr ɪst, -ˈfɒr-)

to divest or clear of forests or trees.
de•for`est•a′tion, n.
de•for′est•er, n.
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Noun1.De Forest - 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)
References in periodicals archive ?
24, 2015 /PRNewswire-USNewswire/ -- Park West Gallery, known for fine art auctions on cruise ships, live art auctions in major metropolitan areas and art galleries in Detroit and Miami Lakes, Florida, is pleased to announce that one of its artists, Autumn de Forest, has been named the recipient of the International Vatican Award in Painting and Art.
He was born on January 9, 1993, in Randers, a market town in East Jutland, perhaps more famous for giving the world Emmelie de Forest, winner of the 2013 Eurovision Song Contest.
Inventor Lee de Forest was using a lamp in an experiment when he noticed sound waves had an effect on the flame.
Le quartier Saint-Antoine de Forest abrite beaucoup d'associations, dont celle-ci, le FC Bouraza Medina, du nom de l'importateur distributeur grossiste marocain de the, sponsor et [beaucoup moins que]mecene[beaucoup plus grand que] du club.
Still others, by artists such as Roy De Forest and Robert Vickrey, challenge us to decipher meanings imbedded in complex, sometimes enigmatic scenes.
Copenhagen will be the host city after Emmelie de Forest took first place for Denmark last year with her song Only Teardrops.
La fiction [beaucoup moins que]Two men in town[beaucoup plus grand que] (Deux hommes dans la ville) du realisateur franco-algerien Rachid Bouchareb etait en lice dans la categorie long metrage de fiction, un drame sur base de redemption qui comptait essentiellement sur l'interpretation de Forest Whitaker dans cette competition.
The finale of the Eurovision Song Contest was in swing, and Denmark's competitor, Emmelie de Forest, was heading into the weekend favored to win.
The winner was Denmark's Only Teardrops by Emmelie de Forest, which was predicted to win with odds of 4/6.
Denmark's Emmelie de Forest won Eurovision on Saturday before an international TV audience of around 125 million, clinching the coveted crown of euro-pop with a folksy ballad backed by a wall of fire, flutes and drums.
Blonde bombshell Emmelie de Forest won the Eurovision Song Content last night for Denmark.
The favourite to win was Denmark's entry Only Teardrops by Emmelie de Forest, with odds of 4/6.