radioscopy Syllabification: (ra·di·os·co·py)Pronunciation: /ˌrādēˈäskəpē/Definition of radioscopy noun Physics the examination by X-rays or similar radiation of objects opaque to light. Derivatives radioscopicPronunciation: /ˈˌrādēəˈskäpik/ adjective radioscopy in other Oxford dictionaries Definition of radioscopy in the British & World English dictionary