wireless telegraphy is a noun meaning "telegraphy that uses transmission by radio rather than by wire". It carries 2 recorded senses.
telegraphy that uses transmission by radio rather than by wire
the use of radio to send telegraphic messages (usually by Morse code)
Definitions, synonyms and semantic relations for wireless telegraphy come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.