father of radio fatherly • father of the church · · · Info · Definitions · Characters · · father of radio · · Text Common · · Latin · · Scripts 15 · · Length 5 · · Syllables Definitions · · · (noun) 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). Synonyms: De Forest, Lee De Forest, Father of Radio. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 f latin small letter f U+0066 h latin small letter h U+0068 i latin small letter i U+0069 o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074