radio

ra•di•o

[[t]ˈreɪ diˌoʊ[/t]] n. pl. -di•os,

1) rtv a system of telecommunication employing electromagnetic waves of a particular frequency range to transmit speech or other sound over long distances without the use of wires

2) rtv an apparatus for receiving or transmitting radio broadcasts

3) rtv a message transmitted by radio

4) rtv pertaining to, used in, or sent by radio

5) phs pertaining to electromagnetic radiation having frequencies in the range of approximately 10 kHz to 300,000 MHz:

radio waves[/ex]

6) rtv to transmit (a message, music, etc.) by radio

7) rtv to send a message to (a person) by radio

8) rtv to transmit a message, music, etc., by radio

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Etymology: 1910–15; shortening of radiotelegraph or radiotelegraphy