Definition of radio-astronomical in English:

radio-astronomical

adjective

Astronomy
  • Relating to or involving radio astronomy; obtained by means of radio telescopes.

Origin

1940s; earliest use found in Nature: a weekly journal of science. From radio- + astronomical, after radio astronomy.

Pronunciation

radio-astronomical

/ˌreɪdɪəʊˌastrəˈnɒmɪkl/