1. 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); [syn: De Forest, Lee De Forest, Father of Radio]
WordNet (r) 3.0 (2006):
De Forest
n 1: 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) [syn: De Forest, Lee
De Forest, Father of Radio]