radio energyn.1
/ˈreɪdɪəʊ ˌɛnədʒi/, U.S. /ˈreɪdioʊ ˌɛnərdʒi/ rare. Now disused.
The energy of radioactive emissions; radiation energy.
ΚΠ
1903 Sci. Abstr. A. 6 297 It would seem..that with radium we have a direct transformation of the potential gravitational energy into radio-energy.
This entry has been updated (OED Third Edition, June 2008; most recently modified version published online March 2022).
radio energyn.2
/ˈreɪdɪəʊ ˌɛnədʒi/, U.S. /ˈreɪdioʊ ˌɛnərdʒi/ Energy transmitted in the form of radio waves.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > radio wave > [noun]
radio wave1915
radio energy1919
1919 Science 19 Dec. 559/2 The modulation of radio-energy employed in wireless telephony.
1955 Sci. Amer. Mar. 36/1 The radio energy given forth by..Cygnus A, startles even astronomers.
1998 Mod. Astronomer Mar. 14/1 If, in our year 2341, the Beta Draconians point their radio telescopes towards the Earth, they will observe a 22-second pulse of radio energy.
This entry has been updated (OED Third Edition, June 2008; most recently modified version published online March 2022).
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