Tra từ wireless telegraphy - Từ điển Oxford Learners Wordfinder Dictionary

Từ điển Oxford Learners Wordfinder Dictionary

wireless telegraphy

noun

1. telegraphy that uses transmission by radio rather than by wire
• Syn:
radiotelegraph, radiotelegraphy
• Hypernyms:
wireless
2. the use of radio to send telegraphic messages (usually by Morse code)
• Syn:
radiotelegraph, radiotelegraphy, wireless telegraph
• Hypernyms:
radio, wireless