Lee_De_Forest

De For·est

[di fawr-ist, for-]
noun
Lee, 1873–1961, U.S. inventor of radio, telegraphic, and telephonic equipment.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
De Forest (də ˈfɒrɪst) [Click for IPA pronunciation guide]
 
—n
Lee. 1873--1961, US inventor of telegraphic, telephonic, and radio equipment: patented the first triode valve (1907)

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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00:10
Lee de forest is always a great word to know.
So is quincunx. Does it mean:
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
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American Heritage
Science Dictionary
DeForest   (dĭ-fôr'ĭst)  Pronunciation Key 
American electrical engineer and inventor who is known as "the father of radio." He patented more than 300 inventions, including the triode electron tube, which made it possible to amplify and detect radio waves.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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