De Forest
[ di fawr-ist, for- ]
/ dɪ ˈfɔr ɪst, ˈfɒr- /
noun
Lee,1873–1961,
U.S. inventor of radio, telegraphic, and telephonic equipment.
British Dictionary definitions for de forest
De Forest
/ (də ˈfɒrɪst) /
noun
Lee. 1873–1961, US inventor of telegraphic, telephonic, and radio equipment: patented the first triode valve (1907)