Definition of radio-luminous in English:

radio-luminous

adjective

  • Emitting visible light as a result of excitation caused by ionizing radiation; radioluminescent.

adjective

  • Emitting radio waves, especially in significant quantities.

Origin

1940s; earliest use found in Scientific Monthly. From radio- + luminous<br>1970s; earliest use found in Nature: a weekly journal of science. From radio + luminous.

Pronunciation

radio-luminous

/ˌreɪdɪəʊˈl(j)uːmɪnəs/