Marconi Marcomanni • marconi · · · Info · Definitions · Characters · · Marconi · · Text Latin · · Script 7 · · Length Definitions · · · (noun) Italian electrical engineer who invented wireless telegraphy and in 1901 transmitted radio signals across the Atlantic Ocean (1874-1937). Synonyms: Guglielmo Marconi. · · Noun Definition 1 Characters · · M latin capital letter m U+004D a latin small letter a U+0061 c latin small letter c U+0063 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072