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De Forest

American  
[di fawr-ist, for-] / dɪ ˈfɔr ɪst, ˈfɒr- /

noun

  1. Lee, 1873–1961, U.S. inventor of radio, telegraphic, and telephonic equipment.


De Forest British  
/ də ˈfɒrɪst /

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Yet when De Forest rented a theater in 1923 to demonstrate several sound shorts, studio heads showed no interest.

From The Wall Street Journal

Last month, The New York Times critic Roberta Smith reviewed the show of Mr. De Forest’s work favorably, saying it “booms forth” from the gallery’s website.

From New York Times

Far from regionalist, or parochial, De Forest’s works reveal an artist who viewed the styles of early modernism as building blocks and used them so inventively that we barely notice.

From New York Times

As a field, Dr. De Forest said, bloodstain-pattern analysis still has the potential to be informative, but only when practiced correctly by those with adequate scientific education.

From New York Times

De Forest shared that throughout her decades-long career, Russell always remained grateful for the chance to take on “His Girl Friday.”

From Fox News