radio English · revision 3280

+ {{infobox|confidence=established|formation=clipping|attested=1903|origins=la radius}}

+

+ ==Pronunciation==

+ * IPA: UK /ˈreɪ.di.əʊ/, US /ˈreɪ.di.oʊ/^(Roach et al. 2011)

+

+ ==Etymology==

+ It is a clipping of [[radiotelegraphy]] and similar compounds,^(AHD 2000)^(MWU 2024)^(Hoad 1986) the independent use of [[radio-]], from the combining form of [[la|radius|t=beam, ray]].^(Etymonline)^(SOED 2002) Barnhart abstracts it from combinations such as radiophone (1881, used by Bell) and radioconductor (1898), but notes its traditional association with radiotelegraphy (1898, after the work of Marconi);^(Barnhart 1988) the COED gives radio-telephone.^(COED 2004)

+

+ ==Earliest recorded meaning==

+ The transmission of signals by electromagnetic waves, in radio-receiver: 1903.^(Barnhart 1988)^(MWU 2024)^(OED 1989) Etymonline dates the shortened form to 1907.^(Etymonline) A message sent by radio is from 1906, now obsolete.^(OED 1989)

+

+ ==Semantic evolution==

+ A radio receiver is from 1913.^(Etymonline)^(OED 1989) Sound broadcasting as a medium dates from 1913 in Etymonline^(Etymonline) but from 1922, in American English, in Barnhart;^(Barnhart 1988) in the winter of 1921–22, Frederick Lewis Allen wrote, radio “came with a rush”.^(Etymonline) ''Radio station'' is from 1912 and ''radio wave'' from 1916,^(Barnhart 1988) and radio astronomy and the radio telescope from 1948.^(Barnhart 1988) The verb, “to transmit by radio”, is from 1916^(Etymonline) or 1919;^(Barnhart 1988) an earlier verb in the same sense was ''marconi'' (1908), from the name of Guglielmo Marconi.^(Etymonline)

+

+ ==Timeline==

+ * 1903 – radio transmission, in radio-receiver.^(Barnhart 1988)

+ * 1906 – a radio message.^(OED 1989)

+ * 1912 – ''radio station''.^(Barnhart 1988)

+ * 1913 – a radio set.^(Etymonline)^(OED 1989)

+ * 1916 – verb, to transmit by radio.^(Etymonline)

+ * 1922 – broadcasting as a medium.^(Barnhart 1988)

+ * 1948 – radio astronomy.^(Barnhart 1988)

+

+ ==Modern meaning==

+ ===Noun===

+ # The sending of signals through the air by [[electromagnetic]] waves.^(AHD)^(SOED 2002)

+ # Sound [[broadcasting]] as a medium or industry.^(AHD)^(Etymonline)

+ # A device for receiving radio broadcasts.^(AHD)^(OED 1989)

+ # A device for sending and receiving radio messages: ''called in by radio''.^(AHD)

+

+ ===Verb===

+ # To send a message by radio.^(AHD)^(OED 1989)

+

+ ==Related words==

+ * [[radiate]]

+ * [[radiation]]

+ * [[radiator]]

+ * [[radius]]

+ * [[ray]]

+ * [[radiant]]

+ * [[radium]]

+ * [[wireless]]

+

+ ==References==

+ {{reflist}}