radio telescopeEnglishOxford New American Dictionaryradio telescope /ˈˌrādēˌō ˈteləˌskōp, ˈˌreɪdiˌoʊ ˈtɛləˌskoʊp / ▸ noun Astronomy an instrument used to detect radio emissions from the sky, whether from natural celestial objects or from artificial satellites.